Two bombs exploded in and around Quetta on Sunday, officials said, the latest in a series of attacks that have targeted government installations and security forces in the region. No injuries were reported. A bomb hidden in a plastic shopping bag went off near a park fence in a northern neighbourhood of Quetta, said Pervez Rafi Bhatti, the city's police chief. The second bomb exploded near a roadside restaurant in Kuchlak, a small town about 20 kilometres north of Quetta, damaging a trolley parked nearby, Bhatti said. No injuries were reported in the blasts. Elsewhere in the province, security forces seized a cache of arms and munitions in a dry stream in Naukundi, said Lt Col Rizwan Malik. No one was arrested and it was not known who dumped the cache there, Malik said. BLA spokesman Mir Azad Baluch claimed responsibility for Saturday's explosions in telephone calls to newspaper offices in Quetta.