Around 18:30 July 20th 2013, An explosion at the arrival hall of Beijing's Capital International Airport shocked travellers and injured one person, according to messages and photos posted by several different witnesses on China's popular social media platform Weibo.

Local media reported that the victim has been rushed to hospital, but his condition remains unknown.

China's state broadcaster CCTV said the man injured in the blast was 34-year-old Ji Zhongxing from Heze in Shandong Province.

He set off a home-made explosive device packed with gunpowder from fireworks, but there were no other casualties.

CCTV did not elaborate on his condition, or on a possible motive for what appears to be a suicide bomb.

The strong explosion occurred about 6.24pm on Saturday at Terminal 3 of the Beijing airport. One photo showed several security and cleaning staff attending to someone on the ground, with an overturned wheelchair lying nearby.

Another, supposedly taken shortly before the blast, showed a man in a short-sleeved shirt sitting in a wheelchair waving his arms in the air, with a white object in one hand, as if in protest. The online user, who posted the photo, identified the man as a possible victim.

Photos on the official Xinhua’s news agency website carried captions citing the witnesses as saying a disabled person had ignited bombs on himself and that casualties were unknown.

The pictures showed medical workers attending to someone and people running through the terminal.