Pro-Taleban militants in northwestern Pakistan say they have pulled out of a peace deal with the government.
The announcement came after two days of bomb attacks against security forces in the region. At least 50 people were killed in three separate attacks.
The militants in the semi-autonomous North Waziristan region said they were breaking the ten-month old peace deal because of government attacks on militants.
The latest bomb attack in northwest Pakistan Sunday killed at least 12 people gathering at a police recruiting center to take an entrance exam. Earlier in the day, 14 security personnel and civilians were killed in a bomb attack on a security convoy in Swat.
On Saturday, a suicide car bomber killed 24 Pakistani soldiers in a military convoy.
Pakistani officials say the violence is an apparent response to last week's military raid on a radical pro-Taleban mosque in central Islamabad. At least 85 people were killed during the assault of Lal Masjid or the Red Mosque.