article_snippet.sent: Television footage showed police sealing off the street in the central Aksaray neighbourhood .
article_snippet.sent: Plain-clothed police officers block a street leading to the police headquarters in Istanbul on Wednesday April 1 .
article_snippet.sent: The emergency began at 2.36pm local time (12.36 GMT) when members of the Revolutionary People's Liberation Party-Front stormed into the office of Prosecutor Mehmet Selim Kiraz.
article_snippet.sent: Armed police rushed to the scene and were shown escorting court officials out of the building, but there was no sign of Prosecutor Mehmet Selim Kiraz before the deadline arrived and live TV feeds were cut.
article_snippet.sent: An ambulance leaves the main courthouse in Istanbul after police storm the building.