Jordan executed 15 prisoners on Saturday, including 10 who were convicted of terrorism, said officials.
According to the CNN, the other five prisoners were found guilty of major criminal offenses, including incest, government spokesman Mohammed al-Momani told state-run Petra news agency.
Among those executed were prisoners charged in last year's assault on a Jordanian intelligence agency office in the Baqaa refugee camp that left five dead and in an attack against security forces in the northern city of Irbid that killed one soldier.
The other convicted inmates were responsible for separate attacks and bombings dating back to 2003, Petra news agency reported.
Meanwhile, Samah Hadid, deputy director at Amnesty International's Beirut regional office, said, "The horrific scale and secrecy around these executions is shocking."
The men were hanged at a correctional center south of Amman.
Jordan had previously imposed a nine-year moratorium on the death penalty. It was lifted in January 2015.