The pilot who died after crashing a small plane into Beijing's tallest skyscraper, injuring 13 people, had mental health issues and had written about suicide in his diary, authorities said Thursday. The plane crash raised questions about aviation safety in tightly secured Beijing, with the CITIC skyscraper around seven kilometres (4.3 miles) away from Zhongnanhai, the government compound which houses top Chinese leaders.

Flight schools have been grounded and safety inspections are being carried out after the aircraft hit the tallest building in the capital.

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The pilot who died after crashing a small plane into Beijing's tallest skyscraper, injuring 13 people, had mental health issues and had written about suicide in his diary,…

Authorities cite history of insomnia and anxiety, say flight deviated from planned route