COLOMBO, May 4 (CNA) - Sri Lanka’s main opposition party on Tuesday (May 3) issued a no-confidence declaration aiming at ousting Prime Minister Mahinda Rajapaksa and his cabinet and blaming them of failing in their constitutional duty to provide a decent living standards amid the island nation's worst economic crisis in memory.

A group from United People's Force party, led by leader Sajith Premadasa, delivered the motion demanding the no-confident parliamentary vote to Parliament Speaker Mahinda Yapa Abeywardena.

The move came amid countrywide protests demanding the resignations of Rajapaksa and his younger brother, President Gotabaya Rajapaksa, who the demonstrators hold responsible for the economic crisis.

A majority vote in the 225-member Parliament would be needed to remove Rajapaksa and the cabinet from power. The United People’s Force can only count on 54 votes but hopes to win votes from smaller opposition parties and defections from the ruling Sri Lanka People’s Front party. The ruling party had nearly 150 votes but that strength has declined amid the economic crisis and defections in a no-confidence vote are possible.

A decision on when to hold the no-confidence vote is expected to happen after members of Parliament start meeting on Wednesday.

The United People’s Force also delivered a no-confidence motion targeting the president, but it would not force him to leave office even a majority of lawmakers vote against him.