8 January 2015, the perpetrator was identified as Diana Ramazova, a Chechen-Russian citizen from Dagestan. Turkish police are currently investigating Ramazova's possible links to al-Qaeda or the Islamic State of Iraq and the Levant. Further investigation revealed that suspect had photos with insurgents from ISIS. The DHKP-C on 8 January removed the statement claiming responsibility from its website without giving any explanation. As of yet, it is not known why they took responsibility for the attack. On 31 March 2015 suspected members of DHKP-C took prosecutor Mehmet Selim Kiraz hostage on the sixth floor of the Istanbul Çağlayan Justice Palace. They demanded that the police announce the names of four members of the security services who they said were connected to the death of Berkin Elvan. The police negotiated with the gunmen for six hours, but eventually stormed the courthouse "because of gunshots heard from inside the prosecutor's office". The two gunmen died during the operation, while the prosecutor was badly wounded and later died of his injuries. On 10 August 2015, two women from the DHKP-C staged an attack on the U.S. consulate in Istanbul; one of the attackers, identified as Hatice Asik, was captured along with her rifle. This was one of four of staged attacks across Istanbul, occurring, with two others targeting police stations and one targeting a military helicopter. A car-bomb was set off near the police station in the Sultanbeyli district, injuring 10, and about five hours afterwards, gunman opened fire upon security forces, killing one and wounding another 10, while 2 DHKP-C members were killed as well. Designation as a terrorist organization The organization is listed among the 12 active terrorist organizations in Turkey as of 2007 according to the Counter-Terrorism and Operations Department of Directorate General for Security (Turkish police). It was one of the original 18 groups on the U.S. State Department list of Foreign Terrorist Organizations when the list was first created in 1997. It also is included in 48 groups and entities to which European Union's Common Position 2001/931/CFSP on the application of specific measures to combat terrorism applies and has been a Proscribed Organisation in the United Kingdom under the Terrorism Act 2000 since 29 March 2001. Membership Information provided by the Intelligence Resource Program of the Federation of American Scientists based on the 2003 Patterns of Global Terrorism report suggests that the organization has several dozen operatives within