Poppy Maskill breaks world record to win ParalympicsGB's first gold in Paris in women's S14 100m butterfly
Tully Kearney adds GB's second gold in women's S5 200m freestyle
Will Ellard wins silver in men's S14 100m butterfly
Steve Bate and pilot Chris Latham take silver in men's B 4000m individual pursuit
Daphne Schrager wins silver in women's C1-3 3000m individual pursuit
Kadeena Cox crashed out early in women's C4-5 500m time trial final
Felicity Pickard and 14-year-old Bly Twomey win table tennis bronze in women's doubles WD14
Women's C4-5 500m time trial - final
Caroline Groot powers to the first gold medal of the Paris 2024 Paralympic Games!
The Dutch rider clocks 35.566 seconds for victory.
Hosts France take silver thanks to Marie Patouillet's efforts, while Canada's Kate O'Brien wins bronze.
But it is heartbreak for Great Britain's Kadeena Cox.
Women's C4-5 500m time trial
Emma Smith
BBC Sport at Saint-Quentin-en-Yvelines National Velodrome
Image source, PA MediaKadeena Cox will not be allowed to restart her run - there has to be a mechanical issue for a rider to be allowed another go after an aborted attempt.
A truly terrible moment for one of GB's best Paralympians.
Women's C4-5 500m time trial - final
Kadeena Cox is helped off the track by her team to applause inside the velodrome.
The Netherlands' Caroline Groot will now take to the track.
Women's C4-5 500m time trial
Emma Smith
BBC Sport at Saint-Quentin-en-Yvelines National Velodrome
Image source, PA MediaKadeena Cox was visibly wobbling as she came out of the blocks, and never picked up speed.
She hit the deck on the first corner, to eerie silence around the velodrome as the crowd struggled to process what happened.
She gets a standing ovation as she is helped back to the central area.
Women's C4-5 500m time trial - final
Oh no. Kadeena Cox goes down at the first turn.
I'm not quite sure what happened there, but she will get a restart if it is a mechanical issue - and if she is OK to give it a go.
Cox is receiving attention for the time being.
Women's C4-5 500m time trial - final
Now, here comes Great Britain's Kadeena Cox.
The two-time defending champion has a time of 36.700 to beat.
Women's C4-5 500m time trial - final
Image source, Getty ImagesMarie Patouillet posts a new fastest time to guarantee host nation France a medal at the velodrome!
What a start, the crowd are on their feet and there are tears of joy among those in the stands.
But what colour medal will it be?
Women's C4-5 500m time trial - final
Canada's Kate O'Brien moves into gold medal position with a factored time of 36.873 seconds.
Home favourite Marie Patouillet is next up on the track and she is welcomed by huge cheers in Paris. Can that support inspire her to something special here?
Women's C4-5 500m time trial
Emma Smith
BBC Sport at Saint-Quentin-en-Yvelines National Velodrome
Just 18 minutes into the cycling competition at the 2024 Paralympics, and we already had our first world record.
Caroline Groot of the Netherlands broke her own record in the women's C5 500m time trial with 35.390 seconds - shaving more than 0.2secs off the time she set in Tokyo.
GB's Kadeena Cox completed her qualifying time trial in 35.436 seconds - second overall.
It could well be a Cox v Groot shoot-out for gold - a fine curtain-raiser for the medal action in these Games.
There was delight for the noisy French crowd too as Marie Patouillet qualified third fastest for the final.
Women's C4-5 500m time trial - final
Image source, Getty ImagesChina's Li Xiaohui crosses the line in 37.688, but with a factored time of 37.187 she replaces Nicole Murray in the early standings.
Great Britain's Kadeena Cox will be the fifth of six competitors to make their bid for gold.
Women's C4-5 500m time trial - final
Kadeena Cox is the world record holder in the women's C4 500m time trial.
The 33-year-old set a lifetime best of 34.812 to win gold in Tokyo three years ago.
The Netherlands' Caroline Groot, world record holder in the women's C5 500m time trial, qualified fastest for the final.
Because of the different classifications, a factor will be applied to each competitor's final time.
New Zealand's Nicole Murray gets the racing under way, setting the early pace by crossing the line in 37.425.
Just like other para sports, athletes in the para-cycling events are divided up into a number of classifications.
Track cyclists ride either tandem bicycles (B) or the more traditional form of bicycle (C) with those C1-5 athletes with a physical impairment impacting the upper and/or lower limbs.
C1 athletes have the most severe limitation while C5 athletes will meet the minimum impairment criteria.
For example, an athlete with a double leg amputation would compete in the C3 class, while an athlete with a single leg amputation would compete a class higher in C4.
In this women's C4-5 time trial event, athletes will be timed separately over 500m with the fastest taking gold.
Great Britain's Kadeena Cox took gold in this event in both Rio and Tokyo.
Image source, Getty ImagesEmma Smith
BBC Sport at Saint-Quentin-en-Yvelines National Velodrome
The very first gold medal event of the 2024 Paralympics is the women's C4-5 500m time trial, commencing at 14.45 BST.
That happens to be Kadeena Cox's event. Winner of four Paralympic golds previously, she has the chance to get the British team off to the best possible start.
Can GB take a very, very early lead in the medal table? We shall soon find out...
Women's C4-5 500m time trial - final (14:45 BST)
Ellie Simmonds
Multiple gold medal-winning Paralympian swimmer on BBC Radio 5 Live
Image source, PA MediaWe’ve seen Kadeena Cox compete at two Paralympics and seen her come away with two golds in Tokyo and Rio, not just in cycling but on the track as well.
To get that medal [run] started and to get the gold medals under way is always great. When you’re part of the team, to see athletes get medals, you want to be part of it. It inspires the whole team and gets the team motivated. They want to be on the podium as well.
I know she’s battling injury but that would be great.
Women's C4-5 500m time trial - final (14:45 BST)
The light show has started and the velodrome is ready to host the first medal event of the Paris 2024 Paralympic Games.
Can Kadeena Cox make it a golden start for ParalympicsGB?
Emma Smith
BBC Sport at Saint-Quentin-en-Yvelines National Velodrome
Welcome to the velodrome, where it is approximately one billion degrees celsius.
Temperatures are kept high in the arena as warm air is less dense than cold, allowing cyclists to move just a little bit quicker as they are encountering less resistance.
This saw several world records smashed during the Olympics, and we have already seen more fall during these Paralympics...
Women’s C4-5 500m time trial - final (14:45 BST)
Image source, Getty ImagesKadeena Cox is one of Great Britain's most well-known Paralympians.
A four-time gold medallist, she entered para sport in 2015 after being diagnosed with multiple sclerosis.
Cox, 33, made history in Rio winning golds in both para cycling and para athletics, before winning two more golds on the track in Tokyo.
In recent weeks, she has spoken of competing being the "easy bit" because all the hard work of training has been done.
In Paris, she is focusing solely on para cycling, but has not had the easiest build-up, having experienced a calf injury and a relapse of multiple sclerosis.
Despite this, earlier this year, she defended her world title in the C4 500m time trial at the Para-cycling Track World Championships in Rio.
Since the last Games, she has also appeared on ITV's I'm a Celebrity... and received an OBE.
Image source, Getty ImagesThe 2024 Paris Paralympics involves 22 sports but not all disability categories can compete in each event.
Each sport has different physical demands and therefore has its own set of classifications.
Image source, Getty ImagesSeveral British Para-swimmers qualified for finals on the opening morning of the 2024 Paralympics as the sporting action got under way in Paris.
Teenagers William Ellard and Olivia Newman-Baronius, who are two of 16 debutants on the swimming team, comfortably came through their respective S14 100m butterfly heats at La Defense Arena and will be strong favourites to win their finals.
Ellard swims at 17:35, while world record holder Newman-Baronius' final follows at 17:42 BST and she will be alongside team-mates Poppy Maskill, who set a blistering pace in the second heat, and Louise Fiddes.
Toni Shaw also stood out in the women’s S9 400m freestyle and will be hoping for a medal in her final (16:40).
Tully Kearney led from the front in the women’s S5 200m freestyle. The 27-year-old will be hoping to upgrade the silver she won at Tokyo 2020 in the final (19:40).
Elsewhere, British boccia legend David Smith began his quest for a third consecutive gold in superb style, beating Brazil’s Jose Oliveria 5-2 in the men’s BC1 match.
Para table-tennis star Bly Twomey, 14, got her Paralympic career off to an outstanding start, alongside Felicity Pickard, with a 3-0 win against Norway in the women’s doubles WD14 quarter-final. They take on China at 17:30 for a place in the final.