Pakistani authorities were today continuing to question a 15-year-old boy who has confessed to be being part of the team that killed opposition leader Benazir Bhutto, marking what could be the first major breakthrough in the investigation.
Security forces, meanwhile, were guarding mosques and other holy sites across the country as its Shiite minority prepared to mark the festival of Ashoura, which in the past has often been marred by attacks from Sunni extremists.
Interior Secretary Kamal Shah said two people had been arrested in the town of Dera Ismail Khan in North West Frontier province.
He said one - a teenage boy - had confessed to involvement in the December 27 gun and suicide bomb attack that killed Ms Bhutto. Both were being questioned in an effort to corroborate the confession, he said.