A Chinese bus company is equipping its vehicles with bricks for passengers to use to break windows in an emergency.
The bricks, painted yellow with "emergency use" written on both sides, are stored under the driver's seat and under a rear seat.
"It's easy for passengers to spot them, and use them to break the window if something happened," said a spokesman for the Harbin Public Transport Company.
The company had stopped providing passengers with safety hammers to break windows as they were always being stolen.
"We don't think anybody will be interested in stealing bricks," the spokesman added.
Bricks have so far been installed on several bus routes in a pilot scheme in Harbin, the capital of Heilongjiang province, reports Northeast Network.
But the company says it will equip all 700 of its buses with the bricks if feedback from passengers is positive.