Armenian police clash with demonstrators as hostage stand-off continues

News report about ongoing hostage stand-off in Armenia by armed group Սասնա Ծռեր/Sasna Tsrer demanding release of political prisoner Jirair Sefilyan and resignation of President Serj Sarkisian and police clashes with demonstrators in Yerevan. This report covers the period between July 17 - July 23rd and has been compiled using video footage by several Armenian media sources.