Burundi's President Pierre Nkurunziza has returned to the capital Bujumbura in the wake of a failed coup attempt.

President Nkurunziza was in Tanzania when military leaders moved against his bid for a third term on Wednesday.

Three of the coup leaders have been arrested, though the main leader is still on the run, a presidential spokesman said.

More than 105,000 people have fled the country since unrest began in Burundi last month, the UN says.

After returning from Tanzania, President Nkurunziza initially travelled to his northern hometown of Ngozi, before continuing to the presidential palace in Bujumbura. He is expected to address the nation.

The president arrived in the capital in a huge convoy and was met by supporters in party colours dancing and celebrating, the BBC reported.