Militants attack Pakistan checkpoint; 5 killed

By RIAZ KHAN | June 1, 2011 | 3:59 AM EDT

PESHAWAR, Pakistan (AP) — Police say some 200 militants have streamed over the border from Afghanistan and attacked a nearby Pakistani checkpoint, killing at least five security troops.

Local police official Bahadur Khan says the attack took place around noon Wednesday in the Upper Dir district. A shootout was still ongoing an hour later at the scene in Shaltalo town, which borders Afghanistan's Kunar province

Upper Dir lies just outside the border regions known as Pakistan's tribal areas. But it, too, has witnessed al-Qaida and Taliban militant activity, and the Pakistani military has carried out operations there in the past.

Securing the long, porous border that divides Pakistan and Afghanistan has been a major challenge for the two countries as they try to stop insurgents.