PARLIAMENT Opposition lawmakers are barred from entering Sarawak and Sabah because they may disrupt the unity of the Borneo states, said Minister in the Prime Minister's Department Joseph Kurup.

"The (two) state governments banned the opposition parliamentarians from entering Sabah and Sarawak to maintain unity.

"Your arrival (in both states) will be seen as disrupting the unity there," he said when winding up the royal address.