As many as 800,000 Indonesians remain without adequate shelter four months after a devastating earthquake in central Java, as a shortfall in international funding and the slow disbursement of government reconstruction grants curb efforts to rebuild.

About 6,000 people died and a further 38,000 were seriously injured in May’s 6.3-magnitude earthquake just south of the city of Yogyakarta. It also left an estimated 1.2m people homeless, with up to 300,000 homes rendered uninhabitable, according to the United Nations.