Engineers are inspecting the 47-story London tower known as the Cheesegrater after two steel bolts broke and part of one fell to the ground.

An area around the base of the building on Leadenhall Street in the City of London financial district was cordoned off after the incident, which caused no injuries, building co- developer British Land Co. said in a statement yesterday. Each bolt is the size of a human arm, the Daily Telegraph reported.

“There is no risk to the structural integrity of the building,” said British Land, the U.K.’s second-largest real estate investment trust.

Contractor Laing O’Rourke Plc and structural engineers Arup Group Ltd. are carrying out the investigation, British Land said. No one at the REIT was available to discuss the matter.

To contact the reporter on this story: Andrew Blackman in Berlin at ablackman@bloomberg.net To contact the editors responsible for this story: Andrew Blackman at ablackman@bloomberg.net Ross Larsen