Riyadh: Saudi Arabia beheaded and crucified a Sudanese man in Riyadh on Friday after he was convicted of raping, robbing and killing a woman, the interior ministry announced.

Abdulrahman Zine Elabidine "broke into a house strangling its owner to death while she was asleep."

He also raped her and stole 165,000 riyals ($44,000/33,000 euros) as well as gold jewellery, said the statement carried by state news agency SPA.

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He then set the house on fire.

His beheading took to 20 the total number of executions in the  conservative kingdom so far this year, according to an AFP tally based on official reports.

Under the AFP count, at least 76 people were beheaded in 2011, while rights group Amnesty International put the number of executions last year at 79.

The death penalty in Saudi Arabia applies strict Sharia (Islamic) law for a wide range of offences including rape, apostasy, armed robbery and drug trafficking, as well as murder.