Police officer dies in Pakistan blast during foreign diplomats' security operation

A bomb explosion on Sunday killed a

police officer

while providing security for a group of nearly twelve foreign diplomats visiting northwest Pakistan, according to police.
The Swat district police officer, Zahidullah Khan said that the diplomats were in the area at the invitation of the local chamber of commerce. "The squad that was leading the convoy was hit by a roadside bomb," he added, news agency Reuters reported.
The blast also injured four additional police officers, Khan further said.

Police confirmed that all the diplomats were unharmed and were in the process of returning to Islamabad.
Further details awaited.