An aircraft about the size of a car crashed into Beijing’s tallest building, CITIC Tower, on Friday, two bystanders told Reuters, as police closed off roads around the skyscraper and stopped passersby from filming the scene.

The building, known as CITIC Tower or China Zun, is a 108-storey skyscraper in Beijing’s central business district. It is the headquarters of the state-owned conglomerate CITIC Group.

There was a heavy police presence at the site, with some approach roads closed to cars.

Police prevented some people from taking pictures and asked others to delete those they had taken while ushering people away from the building.

Two glass panels on a high floor were damaged.

There was no immediate official comment. Beijing’s municipal government did not immediately respond to a faxed request for comment from Reuters outside of business hours.

A courier whom Reuters spoke to near the building said he had rushed over to CITIC Tower around 6pm local time from a nearby location after hearing a loud crash as an aircraft about the size of a car hit the building.

“It was so loud — louder than fireworks,” he said.

He said he had shot a video of the aircraft sticking out of the building, but later deleted it.

Another courier whom Reuters spoke to said he had come to the scene after seeing unverified social media images showing wreckage of a small aircraft on a road next to the building.

Dozens of police cars and several fire trucks lined the roads around the building.

In 2022, a China Eastern passenger jet carrying 132 people crashed onto a mountainside in southern China causing a large fire, shortly after losing contact with air traffic control and dropping thousands of metres in just three minutes.