Saudi security forces have foiled a planned suicide attack on a mosque in the Qatif region in eastern Saudi Arabia, where many Shiite Muslims live, Al Arabiya news channel and other Saudi media reported early on Wednesday.
The Saudi-owned satellite channel said security forces killed a man who was wearing an explosive belt and arrested another.
Both men were not Saudi citizens, Al Arabiya said.
Saudi media said the interior ministry was expected to issue a statement on the attack soon.
Saudi newspaper Asharq Al Awsat carried a similar report but said the second man was wounded after security forces exchanged fire with him.