A suicide bomber in Turkey attacked the American embassy in Ankara, Turkey. The attack killed both the bomber and a Turkish security guard. Other injuries were reported. While no one has claimed responsibility the Turkish government believes the attack was likely the work of a domestic militant group.

[Turkish Interior Minister] Guler said “preliminary information” obtained by police indicated that the bomber was likely connected to a domestic left-wing militant group. He did not elaborate.

A police official, meanwhile, told The Associated Press that the bomber is most likely a suspected member of the outlawed Revolutionary People’s Liberation Party-Front, or DHKP-C. He spoke on condition of anonymity because he was not permitted to speak to the press.

The group has been designated a terrorist organization by the United States but had been relatively quiet in recent year.

The DHKP-C opposes American influence in Turkey and has reportedly engaged in suicide bombings before.

While the US embassy has issued a travel warning for Turkey it is unclear if the DHKP-C or whatever group was responsible has decided to launch a larger campaign against American interests in Turkey.