BERLIN, June 1 (Xinhua) -- Chinese Premier Li Keqiang on Thursday sent a message of condolences to Afghan Chief Executive Abdullah Abdullah over the deadly car bomb attack in Kabul.

Li strongly condemned the attack and said China opposes all forms of terrorism.

China will, as always, firmly support the Afghan government's unremitting efforts in maintaining national security and stability as well as in combating terrorism, said the Chinese premier, who is on an official visit to Germany.

A powerful bomb hidden in a truck exploded near central Kabul's diplomatic area Wednesday morning, killing at least 80 people while injuring over 350 others.