The fallout from the massive explosion in Tianjin has reached one of China’s supercomputers.

The National Supercomputing Center in Tianjin has shut down the Tianhe-1A, once the world’s fastest supercomputer, as a precaution after the building housing it was damaged by the blast, China’s official Xinhua news agency said Thursday.

An explosion at a warehouse storing dangerous chemicals in the northeastern port city of Tianjin Wednesday night killed at least 50, with some 700 others hospitalized. Buildings nearby were flattened, and windows blown out more than a mile around.

Windows at the Tianjin supercomputing center were shattered and some ceilings in the building collapsed, according to Xinhua. The supercomputer remained intact in a reinforced computer room, but was powereddown for security concerns, Xinhua said, citing the center’s director Liu Guangming.

The Tianjin supercomputing center’s website was down Thursday and calls to its main phone line rang unanswered. Two center officials did not immediately respond to an emailed query about the Tianhe-1A’s status.