Sergio Perez followed up his sprint race victory with a superb drive to triumph in Sunday's main event at the Azerbaijan Grand Prix, which was marred by shambolic organisation on the final lap.

Perez was the quickest in Saturday's sprint and the Mexican held off Red Bull team-mate Max Verstappen and Ferrari's Charles Leclerc to claim his second race win of the season.

However, the FIA and race organisers will have questions to answer after crew members and photographers were allowed onto the pit lane during the final lap, despite Esteban Ocon having not pitted.

The Alpine driver came in for his pit stop, but managed to slow down enough to avoid any incident.

Fortunately, there was no taking away from Perez's triumph, his second in Baku after 2021.

Leclerc held pole but two-time reigning Formula One champion Verstappen took the lead in the third lap, with Perez overtaking the Ferrari soon after.

Verstappen clipping the wall on Turn Four allowed Perez to close ground, and there was more bad news for the Dutchman when he pitted just before a safety car, which was brought out after Nyck De Vries spun off the track.

Perez took advantage by pitting during the safety car, and was back out in first place by the time racing resumed.

An investigation for a possible unsafe release yielded no penalty for Perez, who would not relinquish his lead and eventually won by over two seconds.

Behind him, Verstappen and Fernando Alonso tussled for the fastest lap, though it was George Russell who clinched it at the death after a late pit stop.

Leclerc, meanwhile, had to settle for third on a disappointing day for Ferrari.

Red Bull on the charge

Red Bull are the seventh team in F1 history to have won the first four races of a campaign, with the victories split evenly between Perez and Verstappen.

Indeed, Red Bull have now surpassed Mercedes as the team with the most wins in Baku.

Verstappen overtakes legendary Senna

One day short of the 29th anniversary of Ayrton Senna's death, Verstappen secured his 81st podium finish.

That is one more than the great Senna managed in his career, which was tragically cut short in 1994.