They were trampled in Mina valley near Mecca as they jostled to stone a pillar representing the devil.
Saudi Arabia's Interior Ministry said security forces exchanged gunfire with one of the suspects, who blew himself up inside a home he was hiding in on Friday. Five people, including a woman, were arrested in security operations in Mecca, Saudi Interior Ministry spokesman Mansour al-Turki said.
The Islamic State group has claimed responsibility for the horrific suicide bombing attack on a shia mosque in Saudi Arabia, which took lives of at least 21 people.
A $28,500 deposit was made to the account of slain gunman Syed Farook, a media report has said.
Three suicide bombers struck in Saudi Arabia on Monday, including a shocking attack at Islam's second holiest site, the Prophet's Mosque in Medina, where four security guards were killed.