Nico Rosberg tops both Austrian GP practice sessions

Mercedes driver Nico Rosberg walks in the pit during the first training session prior to the Formula One Grand Prix, at the Red Bull Ring in Spielberg in Spielberg, southern Austria, Friday, July 1, 2016. (AP Photo/Ronald Zak)
Ronald Zak/AP

SPIELBERG, Austria (AP) Nico Rosberg led Mercedes teammate Lewis Hamilton in both practices for the Austrian Grand Prix on Friday.

The second practice was interrupted for more than 30 minutes as heavy rain drenched the Red Bull Ring.

Running before the rain, Rosberg clocked his fastest lap. Hamilton came within .019 seconds after the rain break. Rosberg had the fastest time in the dry morning session, with Hamilton .357 seconds behind.

Rosberg has won both races since the circuit returned to Austria, and tops Formula One with five wins, and a 24-point lead over defending champion Hamilton.

Sebastian Vettel ended the second practice in the gravel after losing control of his Ferrari late in the session.

Rain is also forecast for qualifying on Saturday.