Two people were gunned down over an old enmity as attackers opened fire on people who had gathered at a mosque in Swat, reported 24NewsHD TV channel on Friday.

According to details, sources say the double murder took place as the locals were offering fateha for a person dying earlier. Two other persons have been shifted to a hospital in Saidu Sharif after they received bullet wounds in the attack.

One of the victims Nisar was a serving police official while the other, Zahir Khan, was also a retired inspector.

Further details about the killings could not be ascertained as police are investigating the matter.