Three small explosions outside a municipality building in Istanbul Thursday morning left three people lightly injured as police investigated whether the explosions were an act of terrorism, the Anadolu news agency reported.
The explosions occurred outside a building used by the Usudar municipality on the Asian side of Istanbul, dpa reported.
First reports that a number of small devices were thrown at the building appeared to have been false. NTV quoting Istanbul police chief Celalletin saying that one of explosions happened inside a rubbish truck.
Anti-terrorism police and bomb experts were investigating.