TEHRAN: A double-bombing lightly wounded three police in the southeastern city of Zahedan on Tuesday. Gen. Mohammad Ghanbari, the provincial police chief, told the official IRNA news agency that the second bomb went off as police raced to the scene of the first explosion. He says the bombs were handmade and that police are investigating. Jaish Al-Adl, a militant group, claimed responsibility for the explosions. The group said it had targeted a police station with "two strong bombs", damaging a police car and a police motorcycle. Iranian officials said the explosions were caused by percussion grenades, and left three police officers with minor injuries. Zahedan is the capital of Sistan-Baluchistan province, which has seen past attacks by Baluch separatists and drug traffickers. Last month a suicide car bomber struck a police headquarters in the port city of Chabahar, also in Sistan -Baluchistan, killing at least two police and wounding 42 other people. *With AP and Reuters