Saudi Arabia on Tuesday beheaded 37 Saudi citizens, most of them minority Shiites, in a mass execution across the country for alleged terrorism-related crimes. It also publicly pinned the executed body and severed head of a convicted Sunni extremist to a pole as a warning to others. ...

It marked the largest number of executions in a single day in Saudi Arabia since Jan. 2, 2016, when the kingdom executed 47 people for terrorism-related crimes in what was the largest mass execution carried out by Saudi authorities since 1980. ...

The individuals were found guilty of attacking security installations with explosives, killing a number of security officers and cooperating with enemy organizations against the interests of the country, the Interior Ministry said.

The statement was carried across state-run media, including the Saudi news channel al-Ekhbariya. The statement read on the state-run news channel opened with a verse from the Quran that condemns attacks that aim to create strife and disharmony and warns of great punishment for those who carry out such attacks. ...

Saudi Arabia's supreme council of clerics, who are all ultraconservative Sunnis, said the executions were carried out in accordance with Islamic law.