Albon improves to within a tenth of Norris at the top of the order.
Norris has improved his best lap time to a 1m35.249s, 0.5s ahead of Albon in second.
"Balance feels like the car is not working at all but it's probably just the grip of the tyres," he tells his race engineer.
Norris on top ahead of Albon, Ocon, Gasly, Piastri, Hamilton, Hirakawa, Hadjar, Bortoleto and Tsunoda.
"No power!" he reports over team radio.
He's going around the track slowly as he looks to make it back into the pit lane.
An important session for Ferrari, with Hamilton running the new upgrades. He's just gone second fastest in the Ferrari, a tenth off Ocon.
Ocon leads the way with Haas on a 1m36.579s, 1.6s ahead of Lawson.
The first 60 minutes of practice is underway at the Bahrain International Circuit.
There will be six rookie drivers in action during FP1.
Dino Beganovic - Ferrari
Ayumu Iwasa - Red Bull
Fred Vesti - Mercedes
Felipe Drugovich - Aston Martin
Ryo Hirakawa - Haas
Luke Browning - Williams
Ferrari have a number of upgrades for this weekend in Bahrain as they look to turn their season around following a lacklustre start to the 2025.
Click here for a full rundown of the upgrades Ferrari have in Bahrain

Hello everyone and welcome back to the Crash.net live blog for the 2025 F1 Bahrain Grand Prix.
Friday practice kicks off in just under 25 minutes' time in Bahrain.