The Nigerians were put to death along with one Indonesian tonight despite pleas from relatives and international bodies.
The Nigerians killed are Seck Osmane, Humphrey Jefferson Ejike, Michael Titus Igweh and the Indonesian Freddy Budiman.
Deputy Attorney-General for General Crimes Noor Rachmad said one local and three Nigerian drug convicts were executed by firing squad.
“The executions were for now conducted on four convicts on death row,” he said.
“This was done not in order to take lives but to stop evil intentions, and the evil act of drug trafficking.”
He did not say why 10 other drug convicts, who had been expected to face the firing squad, were not executed, although the island where the convicts were being put to death was hit by a major storm as the executions took place.