Twins Louis and Innes Senior scored three of Ireland's 10 tries
Ireland bagged four first-half tries in Group C match at Headingley
Wolfhounds ran in six tries in second half as World Cup debutants Jamaica tired
Italy beat Scotland 28-4 in Group B earlier on Sunday
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James McDonnell
Richie Myler gives it the old-handed tease as he dances across Jamaica's defensive line before zipping the ball wide for Ed Chamberlain.
The Leigh Centurions winger pops it back inside to a man he knows well and James McDonnell rolls over for another Irish try.
Jamaica 2-34 Ireland
Kyle Amor
Former Ireland and St Helens prop on BBC Two
The bench that have come on for Ireland have been fantastic. They've got squad depth too which is crucial as you go further into this competition.
Jamaica 2-34 Ireland
Dave Woods
BBC Rugby League correspondent
They might have laboured tonight but it's a real success story for Jamaican rugby league just to be here.
Image source, Getty ImagesJamaica 2-34 Ireland
Jamaica put the ball through hands as they creep up towards the Ireland line but Kieran Rush's grubber kick is easily picked off by the Irish defence.
Jamaica 2-34 Ireland
Jamaica total metres gain = 683.
Ireland total metres gain = 1601.
This statistic pretty much sums up this contest so far.
Jamaica 2-34 Ireland
Kyle Amor
Former Ireland and St Helens prop on BBC Two
There were six or seven green shirts on four or five Jamaicans.
Jamaica's aggressive defence is getting picked apart.
Jamaica 2-34 Ireland
Joe Keyes knocks over the kick. That's probably the hardest one of the night but it sails over.
Louis Senior
Another well-worked try. The zip has just gone out of the Jamaica defence who are slow out of the line.
Jamaica 2-28 Ireland
Kevin Brown
Former England international half-back on BBC Two
They've taken superstar Luke Keary off. That's the right move, give him a rest. He's done his job.
Jamaica 2-28 Ireland
Ireland are in again as Liam Byrne breaks the line down the middle. Josh Cook looks to be going in under the sticks but Alex Young is over to make a brilliant try-saving tackle.
Jamaica 2-28 Ireland
Kyle Amor
Former Ireland and St Helens prop on BBC Two
Everybody turns up, it doesn't always look pretty. But that kick from Toby King is just perfect.
Jamaica 2-28 Ireland
Joe Keyes is royally booed as he knocks over the conversion. All tongue in cheek of course.
Jamaica 2-26 Ireland
Kevin Brown
Former England international half-back on BBC Two
Oh wow! That's the try of the night isn't it?
Toby King
What. A. Try. Talk about improvisation. Innes Senior is stopped in his tracks out wide but Luke Keary takes over before Harry Rushton dinks a kick in for Toby King to convert.
Jamaica had put Ireland back in their own in-goal area with the kick on their fifth tackle.
Image source, Getty Images'Try of the night' - King adds another try for Ireland
Jamaica 2-22 Ireland
Can you believe it? Ed Chamberlain hits the post again with his conversion attempt.
Jamaica 2-22 Ireland
Kevin Brown
Former England international half-back on BBC Two
Heartbreak for Jamaica.
It's Luke Keary again who starts it with quick play. What a game he is having.
Innes Senior
Richie Myler picks a ball up off his laces and whips a pass left to Innes Senior who has a walk-in try at the corner. Heartbreak for Jamaica.
Jamaica 2-18 Ireland
Kevin Brown
Former England international half-back on BBC Two
This is better from Jamaica. They're showing evidence that they might go on and turn this game into a contest.
Jamaica 2-18 Ireland
Oh my what is Ashton Golding doing?
The Jamaica skipper couldn't have heard the klaxon giving his side a repeat set of six and he kicks possession away with his team in good field position.
Jamaica 2-18 Ireland
Senior opens the scoring for Ireland against Jamaica