Suicide bomber kills six people after early death in crowd . It happened in Pakistan 's volatile North West Frontier Province . Four residents and two police officers were killed , and five others injured . Pakistan has been battling Taliban and al Qaeda militants in the province .
Suicide bomber kills six people after early explosion attracts crowd . Attack happened in Pakistan 's volatile North West Frontier Province . Four residents and two police officers were killed , and 20 others injured . Pakistan has been battling Taliban and al Qaeda militants in the province .