Saudi authorities have beheaded four Saudi nationals and one Chadian expatriate after they were convicted of several charges including rape, kidnapping children and robbery. The Interior Ministry said the five were executed Sunday in the holy city of Medina. It did not provide more details about their cases or the charges against them. Saudi Arabia follows a strict interpretation of Islam under which people convicted of murder, drug trafficking, rape and armed robbery can be executed - usually with a sword. According to an Associated Press count, Sunday's executions brought the number to 32 beheadings this year in Saudi Arabia. In 2008, 102 people were beheaded.