Protesters demonstrated on environmental issues after a track invasion at the British Grand Prix, and leading drivers supported them.
They questioned the methods used by the group that sat down on Wellington immediately after the race started.
Lewis Hamilton made a statement about the protesters.
People are fighting for the planet, and we need more of them.
Lewis was endorsing their right to protest, but not the method that they chose, which compromised their safety and that of other people.
"We don't want to put you in harm's way, so please don't jump on to our race circuits to protest, we don't want you to do that."
A group of people wearing T-shirts protesting against global oil usage walked on to the Wellington straight as cars passed at low speeds before being removed by police.
The race was stopped after a crash on the first lap.
Racing resumed under an hour after it began, with Carlos Sainz taking his first F1 victory.
Sainz was in favor of the protesters' cause, but not the way they spoke about it.
The Spaniard said that people have the right to speak out and do manifestations. I don't think jumping into an F1 track is the best way to do it.
I support the cause and F1 is doing a great job already to try and go carbon zero by 2030.
I don't think jumping into an F1 track is a good way to protest. You could get killed and cause an accident if you are careless.
Red Bull'sSergio Perez was the second runner up.
The Mexican said it was good to see people fighting for the cause, but it was good if they didn't put themselves in danger.
I'm sure F1 can do more and we have to keep pushing.
F1 is going to go net-zero carbon by the year 2030.
The president of F1 didn't comment on the protesters' cause but said it was stupid and dangerous to put their lives in danger.
Police removed the group while the race was stopped.
Several people tried to get onto the track after the red flag.
The matter is being dealt with by the local authorities.
Seven people had been arrested.
Police appealed to the group not to carry out the protest after receiving credible intelligence that they were planning to disrupt the event and possibly invade the track.
"I'm really disappointed that this group of people ignored our warnings prior to race day and made the incredibly dangerous decision to enter the track."
They chose to put the lives of the drivers, marshals and volunteers at risk instead of facilitating a peaceful event. It's disappointing that anyone would do this.
We had plans in place for this and the group were quickly removed by our officers.
Seven people are currently in custody and their details are being determined.