Papua New Guinea's former acting prime minister, Sam Abal, says the ousted government will continue to boycott parliament until the courts decide on the legality of the events of August the 2nd when Peter O'Neill was elected prime minister.
However, the newspaper, The National, reports that several former government MPs sat in the middle benches during Tuesday's session.
They also participated during question time.
In a statement, Mr Abal says the remaining opposition MPs will continue to boycott parliament until the Supreme Court rules on what they consider was the illegal removal of Sir Michael Somare as prime minister.
Mr Abal says the boycott is to protect the constitution.
He says he doesn't discount the ability of Mr O'Neill but he says he must follow the law and, especially, the constitution.