The armed group members who earlier seized a police station in Yerevan have freed Armenian police deputy chief Maj. Gen. Vardan Yeghiazaryan and Yerevan city police deputy chief Col. Valery Osipyan, National Security Service press secretary Samson Galstian told Interfax on Saturday.

"They have been freed," Galstian said.

The radicals had earlier promised to free Yeghiazaryan and Osipyan after the establishment of a press center in neutral territory nearby the seized police station.

Journalists are currently expecting to meet with the armed group members.

A group of armed people seized the building of a district police department in Yerevan early on July 17. They killed one policeman, and four other people were injured during the attack. The radicals are demanding the release of Jirair Sefilian, a coordinator of the civic opposition initiative 'Constituent Parliament', who has been held under arrest on charges of illegal acquisition and storage of weapons.

The attackers also demanded the Armenian leadership's resignation and the formation of a credible government.

Protest demonstrations in support for the armed group members have been under way near the seized police station since July 18.

Some members of this armed group fought during the war in Nagorno-Karabakh in the 1990s under Sefilian's command in the Special Shushi Battalion and still call him their commander.

Vitaly Balasanian, a member of the unrecognized Nagorno-Karabakh republic's parliament and a retired general, who has acted as a negotiator in the hostage standoff in Yerevan over the past several days, had said on the Armenian TV station Shant earlier on Saturday: "They [the armed group members] are demanding [Armenian President] Serzh Sargsyan's resignation, the formation of a transition government, and the release of Sefilian and individuals whom they consider political prisoners,"

"I don't like the word 'political prisoner', there are no such people in Armenia, but the possible mitigation of the charges against these people is on the agenda. I believe the authorities are currently a step ahead, and I am sure these steps should be taken. I am sure that Sefilian and these guys will accept these proposals and will meet each other halfway," Balasanian said.