Ex-general Prabowo Subianto declared victory in Indonesia's tight presidential election on Wednesday, shortly after Jakarta governor Joko Widodo also claimed a win.

Prabowo said he and his running mate Hatta Rajasa, "have received the support and mandate from the people of Indonesia".

He said survey institutes used by his party showed they had won.

However a series of unofficial tallies from reliable polling agencies gave Widodo a lead of between four and five percentage points.