Karachi. At least 2 Chinese citizens have died in an explosion near Karachi Airport in Pakistan. A Chinese citizen is also injured in this incident. The total number of people killed in the attack is not yet known. China’s embassy in Pakistan has called it a terrorist attack. The Chinese Embassy has also mentioned in its statement that many local people were injured. The embassy said the attack was targeted at a convoy of Chinese engineers working on a power project in Sindh province. The Embassy has demanded Pakistan to investigate this attack and give strict punishment to the criminals.