Terrorist organization the East Turkistan Islamic Movement (ETIM) was behind this week's suicide attack in Beijing's Tian'anmen Square, China's top security official said.

"This violent terrorist incident in Beijing was organized and premeditated by the ETIM, which is entrenched in central and western Asian regions," said Meng Jianzhu, chief of the Commission for Political and Legal Affairs of the Communist Party of China Central Committee.

Meng was speaking to Hong Kong-based Phoenix TV.