Lebanese opposition ministers announce their ministerial resignation during a news conference in Rabieh (Photo: Reuters)
"Consultations with parliamentarians will begin Monday at noon (1000 GMT)," the state-run National News Agency quoted Berri as saying.
The announcement came a day after Hezbollah forced the collapse of Prime Minister Saad Al-Hariri's government in a dispute over a UN-backed probe into the assassination of Hariri's father, ex-premier Rafiq Al-Hariri.
Eleven ministers withdrew from the government, providing the minimum number of resignations needed to automatically dissolve the 30-member cabinet, now acting in a caretaker capacity.
The Special Tribunal for Lebanon is reportedly set to indict high-ranking Hezbollah operatives in the 2005 assassination of Hariri.
The Shia resistance group has warned any such accusation would have grave repercussions and has been pressing Western-backed Hariri to disavow the tribunal.