A 24-YEAR-OLD employee in Beijing has died after working a month of overtime for an international advertising firm.

 

via facebook

 

Li Yuan, a staffer in the Beijing office of international advertising, marketing and public relations agency, Ogilvy & Mather, reportedly suffered a sudden heart attack on May 14.

He had being working overtime for a month, not leaving the office until 11pm every day, according to Yangzi Evening News.

Li Yuan fell to the ground in the office around 5pm.

Co-workers immediately phoned for help and emergency personnel rushed him to Peking Union Medical College, where he was confirmed dead.

According to reports, doctors said his death was from sudden cardiac arrest.

Li's final message on Weibo, China's Twitter service, was a photo of him saluting the camera as he left work for the day, the tweet has been commented on more than 15,000 times.