New attack on Pak navy kills five****

---

KARACHI, Apr 28 (AFP): A bomb ripped through a Pakistani bus in Karachi Thursday, killing four naval personnel and a passing motorcyclist in the third attack on navy transport this week in the country's biggest city. More than a dozen people were wounded in the attack claimed by Taliban in Pakistan's politically tense economic capital and southern port, where NATO ships supplies to the 130,000 US-led troops fighting in Afghanistan. Two other navy buses were attacked Tuesday, dealing a blow to the military just days after Pakistan's army chief General Ashfaq Kayani claimed his forces had "broken the back" of Taliban and Al-Qaeda-linked militants. "Now a total of four of our employees-all sailors-have been martyred in the attack on our bus while seven others are injured," spokesman Commander Salman Ali told AFP. Four other navy personnel died Tuesday. The force of the blast tore through sign boards, a fuel station and cars parked along the road, where rescue workers covered bodies with white sheets.