London, England (CNN) -- Greenpeace protesters shut down 10 to 15 BP stations in London on Tuesday, after the oil company announced its second-quarter results, BP said.
Greenpeace said it had shut down 47 stations.
The protesters dropped off a letter at each station and, on their way out, pulled a safety switch that cut off power to the station, BP and Greenpeace said. They also covered BP signs with posters reading, "Closed: Moving beyond petroleum," a take on BP's slogan.
BP said it was working with emergency services to restore the power. One of the stations supplies ambulances, BP said.
It was unclear how many of the affected stations are owned directly by BP. Greenpeace said it simply targeted stations that sell BP gas.
CNN
