There were conflicting reports of the casualties. The information minister of Khyber Pukhtookhwa province said that two US nationals were killed in the attack, but statement from the US Embassy said that “two U.S. personnel and two Pakistani staff of the Consulate were injured” and that “no consulate personnel were killed.”

It was around 9 a.m. when the white car barged its way into the convoy guarding the US government vehicle. Shortly after, there was an explosion, a large plume of smoke and the smell of explosives filled the air, witnesses told ABC News.

Rehmat Ali, a passerby, said that he fell to the ground when the explosion happened and “when I gained senses and looked around I saw some people lying of the road and a vehicle on fire.”

Scenes like this one is not new to Peshawar, which has been scarred by such attacks for decades.

In August 2008, then US Consul General Lynne Tracy, along with two other consular employees, were attacked by a car bomber as their armored jeep left her house for her office located in Peshawar’s safest locality. The occupants of the vehicle escaped injury.

And then again in May 2011 two armored vehicles belonging to the US consulate were hit by a roadside bomb, wounding two American nationals.

All attacks including today’s happened in the same locality which is considered relatively safe.