Nov. 24 (UPI) -- At least three officers of Pakistan's Federal Constabulary were killed Monday and 12 people, including civilians, were injured in a suicide bombing at the force's regional headquarters in Peshawar in the northwest of the country.

Two loud explosions were heard coming from the compound at about 8:10 a.m. local time, with an official saying five security officials and seven civilians had been injured.

Calling it a "foiled terrorist plot," authorities said two armed attackers were shot dead before they were able to enter the building.

"Initially, three militants tried to attack the headquarters. One terrorist blew himself up at the gate, while two others tried to enter the premises but were gunned down by FC personnel," Peshawar Capital City Police Officer Mian Saeed Ahmad told reporters.

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