Lewis Hamilton led the field in the first Formula One practice session at the new Baku City Circuit.
Lap times improved quickly throughout much of the session on the recently-laid surface. Hamilton set his best time on a set of super-soft tyres, then spoiled a succession of laps with minor errors at turn one and turn three.
Nico Rosberg ended up three-tenths of a second off his team mate while Valtteri Bottas showed well for William on the soft tyre compound, finishing up six-tenths of a second down on Hamilton.