Two bombs exploded Saturday in camps for people fleeing a military offensive in northwest Pakistan, killing at least 20 people and wounding around 50 others, police said.

The blasts went off when officials were distributing food in the camp in Kohat, said officer Zafar Iqbal.

The Kacha Pukka IDP camp is located in the Istarzai area of Kohat.

The camp hit Saturday was for people who had left Orakzai district, where the army has been fighting militants since the end of last year. The tempo of the operations has picked since March, with near daily aerial

Police officer Khalid Umarzai said at least 20 people were killed and 30 others wounded in the twin bombings, which happened within 10 minutes of each other.