China on Wednesday reiterated its stance on fighting against the East Turkistan Islamic Movement (ETIM), a terrorist group that voiced support on Tuesday for the March 1 terrorist attack in Kunming.

ETIM released a video online and expressed support for the attack in Kunming, capital of Yunnan Province in southwest China, which killed 29 and injured another 143.

"It has fully exposed the terrorist nature of ETIM," foreign ministry spokesman Hong Lei said at a daily news briefing.

Terrorism is a common enemy of mankind. Fighting ETIM is a key component of the international anti-terrorism war, Hong said.

He called on the international community to fully recognize the terrorist nature and severe damage of the "East Turkistan" forces, as represented by ETIM, and to support China's anti-terrorism stance.

The ministry earlier revealed that flags related to the ETIM were found at the scene.

ETIM, listed by the United Nations Security Council as a terrorist group, claimed responsibility for the Tiananmen attack in October in which five people were killed and 40 injured.