Bomber and several fighters detonate explosives-laden vehicle near security post in Bannu, Khyber Pakhtunkhwa, near Afghanistan. A car bombing at a police post followed by an intense firefight has killed at least three officers in northwestern Pakistan, according to police and security sources. The attack took place in Bannu, a district in Khyber Pakhtunkhwa province bordering Afghanistan, late on Saturday. Recommended Stories list of 3 items list 1 of 3 More than a dozen killed in bomb blasts, gunfire in Pakistan’s northwest list 2 of 3 Deadly Islamabad bombing sharpens focus on cross-border attacks in Pakistan list 3 of 3 Gas explosion kills 16 in Pakistan’s Karachi, collapsing building end of list Police official Zahid Khan told The Associated Press that a suicide bomber and several fighters detonated an explosives-laden vehicle near a security post. Shortly after, multiple explosions were heard and the security post collapsed from the impact of the blast, he said.…