One man has been killed and two others have been injured in a bomb attack on the offices of a pro-Islamic State magazine in Istanbul.
The offices of Adımlar Magazine were targeted with a bomb left at the door at about 7.30pm last night, reported the Dogan news agency, which runs several newspapers including mainstream daily Hürriyet.
A gas explosion was initially suspected, but no evidence of a gas leak was found in the offices. The force of the explosion tore down the building's exterior wall and did extensive damage to the area.
The dead staff member has been named as Ünsal Zor, a 45-year-old writer for the magazine.
Two others, aged 30 and 39, were injured in the attack, police told the news agency.
Adımlar is a monthly magazine with alleged ties to a radical, illegal organisation called the Islamic Great East Raiders Front, which supports the Islamic State group.
A newly-founded group called the People's Defence Unit claimed responsibility for the attack, Dogan news said, citing the group's Twitter account.
"“Adımlar Magazine was punished for their justification of the massacres. Our actions will continue to the extent that such discourses continue. It is a crime to defend killers. No action will be left unpunished against revolutionists,” the organization said through its Twitter account."
An anonymous staff member, however, told CNN they "know" the attack was orchestrated by the CIA in the US with help of Mossad, the Israeli intelligence agency.