UNP Parliamentary group is expected to meet this afternoon to make a final decision on their future course of action.
More ministers have resigned this morning following the party's defeat at the Presidential election.
However, Prime Minister Ranil Wickremesinghe was present at the swearing-in ceremony of President Gotabhaya Rajapaksa.
Many political sources confirmed that Prime Minister Ranil Wickremesinghe would step down from office soon.