Two suicide bombers struck a popular Muslim shrine in Pakistan's second largest city, killing atleast 42 people and wounding 175 in the second major attack in Lahore in a month. The bombers attacked late Thursday as thousands of people visited the Data Darbar shrine, where a famous Sufi saint is buried. The first bomber detonated his explosives in a large underground room where visitors sleep and wash themselves before praying. The attack occurred as volunteers handed out food to people visiting the shrine, said sources. Minutes later, a second bomber detonated his explosives upstairs in a large courtyard in front of the shrine as people tried to flee the first attack.