The official further said the attackers' accomplice panicked as the suicide attack did not achieve its objective and opened fire. He said that officials then gunned down the second terrorist. From what I checked, the terrorist fired about 15 rounds. Other than that, he also had some grenades, he said. Police were escorting the van after receiving reports about possible attacks on foreigners who are working in Pakistan on various Chinese-funded and other projects, said Tariq Mastoi, a senior police official. He said a timely and quick response from the guards and police foiled the attack and both attackers were killed. Counter Terrorism Department (CTD) DIG Asif Aijaz Shaikh said the Japanese nationals were travelling in a van along with two security guards when the terrorists tried to hit the van. No one has claimed responsibility so far, the DIG said, adding that the vehicle carrying the Japanese nationals was bullet-proof.