A plane crashed into Beijing's tallest building on Friday, witnesses said, as roads around the skyscraper were closed off.

The skyscraper, known as CITIC Tower or ​China Zun, comprises over 100 storeys and stands in Beijing's central business district.

It is the headquarters of the state-owned conglomerate CITIC ​Group.

The plane which crashed into the building was reportedly no bigger than the size of a car, two bystanders told Reuters.

There has been no comment about the incident from local authorities yet.

Dozens of police cars and several ⁠fire trucks lined the roads around the ​building. Two glass panels on a high floor were damaged.

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

One witness, a courier who Reuters spoke to near the building, said he took a video of the aircraft as it stuck out of the building but then deleted it out of fear of being caught by police.

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The courier said he had rushed over ‌to CITIC Tower from a nearby location at around 6pm local time after hearing a loud crash.

"It was so loud - louder than fireworks," he said.

Posts on Friday of the building were quickly removed from Chinese social media.

(c) Sky News 2026: Plane crashed into Beijing's tallest building, witnesses say