See you at 12:00 GMTpublished at 11:03 Greenwich Mean Time
Right, time to grab a break.
We will be back for the afternoon session from 12:00 GMT.
See you then!
Day one of pre-season testing in Bahrain
Mercedes' Andrea Kimi Antonelli quickest in morning session
First look at Lewis Hamilton in the Ferrari
Briton Oliver Bearman completes 72 laps for Haas
Afternoon session featuring Max Verstappen starts at 12:00 GMT
Season-opening Australian Grand Prix 14-16 March
Verstappen aiming for fifth consecutive drivers' title in 2025
McLaren begin defence of constructors' championship
Get involved: #BBCF1
Tasnim Chowdhury
Right, time to grab a break.
We will be back for the afternoon session from 12:00 GMT.
See you then!
1. Andrea Kimi Antonelli (Mercedes) - 1:31.428
2. Liam Lawson (Red Bull) +0.132
3. Alex Albon (Williams) +0.145
4. Yuki Tsunoda (Racing Bulls) +0.182
5. Lewis Hamilton (Ferrari) +0.406
6. Jack Doohan (Alpine) +0.413
7. Fernando Alonso (Aston Martin) +0.446
8. Oscar Piastri (McLaren) +0.656
9. Nico Hulkenberg (Sauber) +0.741
10. Oliver Bearman (Haas) +4.094
That's the end of the morning testing session.
It's been a decent morning, minus a few oversteers.
Time for the drivers to get back into the garage.
Chris Medland
F1 journalist in Bahrain
At Haas, one of the big points of focus for these three days in Bahrain will be bedding in not only an entirely new driver line-up in Esteban Ocon and rookie Oliver Bearman, but a new race operations team as well.
That includes a new chief race engineer in the form of Francesco Neri, and a new race engineer for each driver - Laura Mueller for Esteban Ocon and Ronan O'Hare for Bearman - while the new sporting director is a familiar name, with Mark Lowe having worked for the team in the past. Haas also have a new head of strategy joining, with Carine Cridelich set to join from Racing Bulls next month.
There's some flying laps happening on the track, can drivers clock in faster lap times?
Antonelli and Tsunoda are on the most laps, 74 for the pair.
Just 10 minutes to go of the morning session.
What else can the drivers do before they pass on testing duties to their teammates.
68 laps now completed for Yuki Tsunoda, Oliver Bearman and Andrea Kimi Antonelli.
At the other end, Fernando Alonso has clocked 40 laps.
Max Verstappen has been watching on from the Red Bull garage. We will see him in the car for the afternoon session.
McLaren's Oscar Piastri has joined the pack. He's on an out lap, but we will see what time he clocks in soon.
Alex Albon, Lewis Hamilton, Jack Doohan and Yuki Tsunoda are on their out laps.
Andrea Kimi Antonelli has completed the most laps so far, 66 for the Mercedes rookie.
There is just 30 minutes to go of the morning session on day one of testing.
Oliver Bearman is back out on track and has also done a race distance, clocking in 57 laps.
Alex Albon and Liam Lawson are on their out lap, Lewis Hamilton has also joined them.
Tsunoda and Antonelli are joined by Aston Martin's Fernando Alonso on the track.
Everyone else is back in their team garages.
Racing Bull's Yuki Tsunoda has clocked in the most laps so far, he's on 57 and completed a race distance in Bahrain.
Andrea Kimi Antonelli has also clocked 57 laps so far.
Oliver Bearman has clocked 56 laps, just one short of a race distance.
He's back in the Haas garage and hopped out of the car to speak to his race engineer.
Andrea Kimi Antonelli has jumped up to the first spot on the leaderboard.
He's on a lap time of 1:31.428 and has clocked in 53 laps.
1. Alex Albon (Williams) - 1:31.573
2. Liam Lawson (Red Bull) +0.001
3. Lewis Hamilton (Ferrari) +0.261
4. Jack Doohan (Alpine) +0.268
5. Fernando Alonso (Aston Martin) +0.301
6. Yuki Tsunoda (Racing Bulls) +0.336
7. Oscar Piastri (McLaren) +0.511
8. Nico Hulkenberg (Sauber) +0.596
9. Andrea Kimi Antonelli (Mercedes) +0.625
10. Oliver Bearman (Haas) +4.046
Liam Lawson makes a trip to the Red Bull garage, the team will want to check the car for any damage.
Under an hour left of the morning session.
Oh no, Liam Lawson has a moment and spins while exiting Turn Three but luckily he manages to avoid the gravel.