Arsala Jamal, the governor of the eastern Afghan province of Logar, and three other people died Tuesday when a bomb exploded at a mosque before prayers for the Muslim holiday of Eid al-Adha, the Festival of Sacrifice.

The blast occurred early in the morning at the Eidgah mosque in the city of Pul-e-Alam, the provincial capital, wounding 15 people, Jamal's spokesman, Din Mohammed Darwish, told Afghan news agency AIP.

No group has yet claimed responsibility for the attack, which came after the Interior Ministry announced that special security measures had been taken for the festival, which is being celebrated on Tuesday and commemorates the Biblical sacrifice of Abraham.

Jamal's assassination comes a week after the arrest by U.S. security forces of the No. 2 figure in the Pakistani Taliban, Latifullah Mehsud, in Logar.

The Afghan conflict is experiencing one of its bloodiest periods since the U.S.-led invasion that toppled the Taliban regime 12 years ago, while the country is preparing for national elections next April.

NATO troops have been withdrawing from Afghanistan since 2011 and that process is scheduled to be completed in 2014. EFE