Afghan mosque blast kills 4 in Afghanistan's Nangarhar province, four people were

killed in a blast at a mosque in the region. More than 40 people were injured in the incident. According to the local administration, violent blast shook the mosque during the holy month of Ramadan prayers. Sources said the number of casualties could rise blast. Confirming the incident, a spokesman for the governor of Nangarhar province, said  the incident happened near the provincial capital Jalalabad.