ISLAMABAD, Pakistan - Suspected suicide bombers attacked police with gunfire and grenades in Pakistan's North West Frontier Province on Friday, police said.
The attacks came after police were informed of a threat posed by four suicide bombers in Lakki Marwat, said district police officer Muhammad Ayub.
Police cordoned off an area to conduct a search when two of the suspected bombers hurled a hand grenade and opened fire in an engagement that lasted 40 minutes, Ayub said.
Both suspects died in the confrontation, he said. Police are still looking for the two other alleged bombers.
- Journalist Nazar ul Islam contributed to this report.