Man is a British national of Polish origin , but has not yet been identified . He was arrested on Saturday as part of an operation against Kiraz . Banned leftist militant group took senior Turkish prosecutor Mehmet Selim the DHKP-C hostage in Istanbul last week . Both the DHKP-C and hostage takers were killed in the resulting police shoot-out .
Man is a British national of Polish origin , but has not yet been identified . He was arrested on Saturday as part of an operation against the DHKP-C . Banned leftist militant group took senior Turkish prosecutor Mehmet Selim Kiraz hostage in Istanbul last week . Both Kiraz and hostage takers were killed in the resulting police shoot-out .