LAHORE Three brothers were shot dead when their neighbour ambushed their vehicle near their residence here in Mughalpura area, police said on Tuesday. Police sources said that wife of the killer had developed illicit relations with one of the deceased men. However, police investigators said that they were investigating whether the killer had monetary dispute or he killed all the three brothers in revenge after his wife had developed illicit relations with one of the deceased. Police said that the three brothers, later identified as Kabeer Ahmed, 43, Abdul Rasheed, 53 and Naeem, 37, had just left their residence to reach the airport when a gunman intercepted their carry-van and sprayed it with bullets near Shalimar Link Road. The three brothers sustained multiple bullet bounds and were rushed to a local hospital, where doctors pronounced them dead. The killer managed to escape from the crime scene with no time. Police sources said that one Zahid Iqbal Khan, said to be neighbour of the deceased men, carried out the brazen attack when Naeem and Kabeer were going to drop their third brother Muhammad Rasheed at the airport. Rasheed was scheduled to leave for London on Tuesday. He had come from London a couple of weeks ago, police said. A police officer claimed that two persons namely Sajid Gujjar, brother of Zahid and his father Faqeer Muhammad have been arrested and raids are underway to nab the killer. Sources close to the investigators said Zahid Pathan got infuriated when came to know that his neighbour Kabeer had developed illicit relations with his wife. Zahid had publicly announced that he would kill Kabeer and his entire family to take the revenge. The killer and father of three, Zahid, was also close fried of the deceased Kabeer.