A Turkish far-left group has claimed responsibility for Tuesday's suicide bombing in Istanbul that killed a police officer and wounded another.
The Revolutionary People's Liberation Party-Front (DHKP-C) said on its website Wednesday the bombing was retribution for the death of a 15-year-old who died last year after being hit in the head during an anti-government protest in 2013.
The suicide bombing Tuesday happened at a police station in Sultanahmet district, an area that is popular with tourists. It was the second targeted attack on police in a week.
The DHKP-C also claimed a grenade attack last Thursday outside a palace that used to house the offices of President Recep Tayyip Erdogan. Those explosives failed to detonate.
Turkey, the United States and the European Union consider the group a terrorist organization. It has carried out sporadic attacks, including a suicide bombing at the U.S. Embassy in Ankara in 2013.