Iranian authorities hanged four convicted drug traffickers Saturday in the southern port city of Bandar Abbas, according to a report from the ISNA news agency. The hangings bring the number of executions in Iran this year to 102. The Islamic republic executed 177 people last year, according to a report from Amnesty International.

The executed were Malek S., convicted of trafficking 2.3 pounds of heroin; Javad S., convicted of possessing 63 pounds of opium; and Qasem and Kavoos (no last name or initial provided), both convicted of possessing weapons and 339 pounds of opium.

Under Iranian law, capital crimes include not only murder, treason, and espionage, but also rape, armed robbery, apostasy, blasphemy, repeated sodomy, adultery, or prostitution, and serious drug trafficking offenses.