Bomb attacks in a restive tribal region of Pakistan have killed two soldiers, while gunmen in the country's south have killed two police officers.
Authorities say at least two roadside bombs exploded in North Waziristan Sunday, killing the soldiers and wounding two others.
Meanwhile, in the southern port of Karachi, officials say four gunmen on motorbikes opened fire on a police vehicle, killing two police officers.
No one has claimed responsibility for the attacks.
Some information for this report was provided by AP and AFP.