A high-rise office building near Grand Central Terminal was at risk of collapse on Tuesday, prompting an emergency response during the morning rush in Midtown Manhattan, the authorities said.

Fire officials said they received a call just before 8 a.m. about falling bricks in the 200 block of East 42nd Street. The building is more than 30 stories tall.

Officials inspecting the building found that two support columns inside the building were buckling, and several upper floors were sagging.

Construction workers were evacuated from the building and officials cleared two adjacent buildings at 225 and 221 East 43rd Street as a precaution, fire officials said.

There were no injuries, according to the Fire Department.

This is a developing story. Check back for updates.