The second Ashes Test at Lord's was interrupted when two climate protesters invaded the pitch and scattered orange powder on the outfield, before one was carried off by England wicketkeeper Jonny Bairstow.
After the first over on the opening day of the Test, the protesters came from the stands and moved towards the pitch while releasing the powder before being tackled by security staff and players.
“You never want to see that,” former Australian captain Aaron Finch said on Channel 9. “Disappointing start.”
Bairstow picked up one of the men and carried him off the field before dropping him to the ground outside the boundary markers.
Ground staff cleared the powder and play resumed after a delay of around five minutes.
"We are aware of protesters on the Lord’s Cricket Ground pitch today. Police have arrested three people and taken them into custody," the Metropolitan Police said on Twitter.
The protesters have disrupted other sporting events in England this year, including the Premiership Rugby final and the World Snooker Championship.
Earlier, England captain Ben Stokes won the toss and asked Australia to bat first in the second Ashes Test.
England selected pacer Josh Tongue for off-spinner Moeen Ali and Australia recalled speedster Mitchell Starc in place of Scott Boland.
Australia lead the five-match cricket series 1-0 following their two-wicket victory in the first Test at Edgbaston.
Lineups
England: Zak Crawley, Ben Duckett, Ollie Pope, Joe Root, Harry Brook, Ben Stokes (c), Jonny Bairstow, Ollie Robinson, Stuart Broad, Josh Tongue, James Anderson.
Australia: David Warner, Usman Khawaja, Marnus Labuschagne, Steve Smith, Travis Head, Cameron Green, Alex Carey, Pat Cummins (c), Mitchell Starc, Nathan Lyon, Josh Hazlewood.
— Additional input from Reuters