Lewis Hamilton top as Dutch Grand Prix first practice delayed by Vettel car problem

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The BBC Sport website has audio and text coverage of this year's Dutch Grand Prix.

In a bizarrely short first practice session at The Dutch Grand Prix, Lewis Hamilton was partnered by Max Verstappen, his title rival.

Sebastian Vettel's Aston Martin was stopped at the track due to a suspected engine problem. This interrupted the hour-long session by nearly 40 minutes.

The car was still electrically active, causing delays in its recovery to the pits.

With only six minutes left, running resumed and Hamilton was ahead of Verstappen by 0.97 seconds.

Carlos Sainz's Ferrari and Charles Leclerc's Ferrari were fourth and fifth, respectively, behind Esteban Ocon's Alpines, Fernando Alonso, Esteban Ocon's Alfa Romeo, Alfa Romeo’s Antonio Giovinazzi and Aston Martin's Lance Stroll, Pierre Gasly's Alpha Tau and Pierre Gasly’s Alpha Tauri.

McLaren's Lando norris was 11th fastest, and Williams driver George Russell was 15th.

F1 cars will race at Zandvoort's historic track for the first time since 1985. Drivers were eager to see the unique layout.

They didn't get as much exposure to the unusual layout, which featured two heavily banked corners, as they would have liked.

After the first runs, which were essentially sighters for drivers who had never been to Zandvoort or have done so many years ago, Norris won from Verstappen and Bottas.

Vettel, who had left behind a trail oil behind him car, came to a stop at the pit lane exit.

Many will find this a bizarre sequence of events. The full explanation is still unknown.

Vettel took a fire extinguisher and lit the fire himself. He did this because he could see that the car was still electrically alive and couldn't be touched.

Once the fire had been extinguished, it took many minutes for a marshal to arrive on the scene in rubber sheets and insulating clothing.

The engineers from Aston Martin eventually arrived and removed the car. However, there will be some questions about why it took so long.

The FIA, the governing body, stated that the delay was caused by two factors. First, the car went from being ERS-safe to unsafe. This meant that we had to take all precautions during recovery. We also had to reset safety systems before we could resume the session.

The acronym ERS (energy recovery method) refers to the hybrid system used in F1 cars.

With only six minutes left, the session was reopened. This led to an intense period on the fast, twisty track.

Ocon appeared to push Norris onto the grass because of the heavy traffic.

Everyone made it through the session without any injuries.

Apart from Vettel, the biggest loser was Alpha Tauri's Yuki Tusunoda. He had a spin on his very first lap while he was doing aerodynamic calibration work and has never returned to the track.