North Borneo and Sarawak, anticipating a pro-Malaysian UN report, declared their independence as part of Malaysia on the sixth anniversary of Merdeka Day, 31 August 1963, even before the UN report had been published. On 14 September the UN report was published, once again providing general endorsement of the proposed Malaysian state. Malaysia was formally established on 16 September 1963. Indonesia immediately reacted by expelling the Malaysian Ambassador from Jakarta. Two days later, rioters organised by the PKI burned the British embassy in Jakarta. Several hundred rioters ransacked the Singapore embassy in Jakarta and the homes of Singaporean diplomats. In Malaysia, Indonesian agents were captured, and crowds attacked the Indonesian embassy in Kuala Lumpur.