Suicide bombers attack US base in Afghanstan

A team of suicide bombers tried to storm a US military base near the border with Pakistan in a daring insurgent attack on a major American installation, officials said Tuesday.

Six suicide bombers exploded their vests after being surrounded outside the base.

At least 13 insurgents died in the attack, officials said. The militants failed to gain entry to Camp Salerno in Khost city after launching waves of attacks just before midnight on Monday, said Arsallah Jamal, the governor of Khost. The base is just a few miles (kilometers) away from Pakistan's border.

The attack came one day after a suicide bomb outside the same base killed 10 civilians and wounded 13 others.

A US coalition spokesman, 1st Lt. Nathan Perry, said early on Tuesday that fighting around the base was still ongoing. He said there had been no American deaths.

Soldiers on the ground, fighter aircraft and helicopters were chasing the retreating militants.

Gen. Mohammad Zahir Azimi, the Afghan Defense Ministry spokesman, said Afghan soldiers, aided by US troops, chased and surrounded a group of insurgents, and six militants in suicide vests blew themselves up when cornered. Seven other militants died in those explosions and a rolling gunbattle, he said.

"(The Afghan National Army) is saying that anytime we get close to them, they detonate themselves," Jamal said.

The Taliban appeared to confirm that account. Zabiullah Mujahid, a Taliban spokesman, said the militants dispatched 15 militants for the attack on Salerno, and that seven detonated themselves and eight returned to a Taliban safe-house.

Jamal said the bodies of at least two dead militants were outside the checkpoint leading to the base's airport, both of whom had suicide vests on. It wasn't clear if those militants were among the dead in Azimi's count.

Two Afghan civilians also died in the fighting, Jamal said. Militants have long targeted US bases with suicide bombers, but coordinated attacks on such a major base are rare.

The attack came a day after the top U.S. general in the region, Maj. Gen. Jeffrey J. Schloesser, issued a rare public warning that militants planned to attack civilian, military and government targets during the celebration of Independence Day on Monday.

More than 3,400 people, mostly militants, have been killed in insurgency-related violence this year, according to figures based from Western and Afghan officials.