LONDON—Climate-change protesters disrupted central London for a fourth straight day, continuing demonstrations that have seen activists inundate several of the capital’s landmarks and more than 400 people arrested.

Extinction Rebellion, a group promoting civil disobedience to raise awareness about climate change, has staged a series of stunts over the last few weeks ranging from naked protesters gluing their buttocks to the transparent plastic protection panels in Parliament’s viewing galleries to setting up tents on a major bridge in central London.

London’s police have tried, largely unsuccessfully, to clear the protesters as the demonstrations brought traffic in parts of central London to a halt this week.

Extinction Rebellion aims for protests to continue for two weeks and “maybe longer if we have enough rebels and the government hasn’t responded,” said Jayne Forbes, a spokeswoman for the group.

“We’ve got the message,” said Michael Gove, the U.K.’s environmental secretary, on the British Broadcast Corp.