DENPASAR, Indonesia: An Australian drug smuggler on death row in Indonesia has lost his appeal for presidential clemency, an official said Thursday, meaning he could soon face the firing squad alongside a compatriot also convicted of trafficking.

The news came after Jakarta at the weekend executed six drug offenders, including five foreigners, prompting a furious Brazil and the Netherlands — whose citizens were among those put to death — to recall their ambassadors.

Indonesia’s new president has been a vocal supporter of capital punishment for drug offenders, and fears have been growing the two Australian leaders of the “Bali Nine” drug-smuggling gang, Andrew Chan and Myuran Sukumaran, could be next.

The news Thursday that President Joko Widodo had rejected Chan’s appeal for clemency, typically the last chance of a death row convict to avoid the firing squad, removed the final hurdle for authorities to put the pair to death.

The Indonesian government, which enforces some of the toughest punishments for drug traffickers in the world, previously said that Chan and Sukumaran had to be executed at the same time as they had committed their crime together.

Sukumaran’s appeal for presidential clemency was rejected last month, and authorities had been waiting for the outcome of Chan’s appeal.

Following news Chan’s appeal had been rejected, a spokesman at the Indonesian attorney general’s office said no date or location had been fixed for their executions.

Chan and Sukumaran, as well as other members of the drug-smuggling group, were arrested in 2005 for attempting to traffic eight kilograms (18 pounds) of heroin out of the popular Indonesian resort island of Bali.

Both men were sentenced to death in 2006, and sought presidential clemency after losing appeals to Indonesia’s Supreme Court in 2011. They are jailed in Bali’s Kerobokan prison.

The other seven members of the “Bali Nine” were given lengthy jail terms.