A suicide bomber blew himself up at a Kuwaiti Shi'ite Muslim mosque in Kuwait city during Friday prayers, wounding at least eight people, Kuwaiti newspaper Al-Jarida said on social media.

The newspaper said the attack targeted Imam Al-Sadeq Mosque in the Sawaber district.

"Eight casualties have been taken to the Emiri hospital, two in critical condition," Al-Jarida said on its Twitter feed, without giving a source.

Arab television stations Al-Arabiya and Al Jazeera earlier reported that an explosion hit the mosque and caused several casualties. - Reuters