Ringleaders of 'Bali Nine' drug gang moved to prison island ahead of execution

The ringleaders of the "Bali Nine" Australian drug gang are being transferred from Bali to another Indonesian island to be executed.

Andrew Chan and Myuran Sukumaran are among nine foreigners expected to face a firing squad in the coming days.

Australia has pressed Indonesia not to go ahead, with Prime Minister Tony Abbott saying he was "revolted".

The pair were convicted in 2005 after being caught attempting to smuggle heroin from Bali to Australia.

Indonesia has some of the toughest drug laws in the world and ended a four-year moratorium on executions in 2013.

President Joko Widodo has said the drugs trade destroys lives in Indonesia and he will show no mercy to convicted dealers.

Chan and Sukumaran left Kerobokan jail in Bali in the early morning in armoured cars and are being transferred to Nusakambangan, the prison island where the executions are due to take place.

It is not clear when the executions will take place, but a formal announcement will be made by authorities 72 hours before.