Dubai: Bahraini authorities sentenced an Iraqi man to three years in prison on charges including rioting and joining an “unauthorised” protest in the capital Manama, official media reported.

The small kingdom has seen frequent unrest since 2011 when security forces crushed protests led by the opposition demanding a constitutional monarchy and an elected prime minister.

The authorities in Bahrain accuse some in the opposition of ties with Iran and Iraq.

The defendant, whose identity was not disclosed, was convicted Thursday of “taking part in an authorised rally” and setting fire, “alongside other rioters, to six garbage bins”, the BNA news agency quoted prosecutor Ahmad Al Hammadi as saying.

He was also accused of “endangering lives” and “possessing flammable materials”.

The High Criminal Court ordered his deportation once his sentence is served, BNA said without giving further details.

At least 89 people have been killed in Bahrain in clashes with security forces, while hundreds have been arrested and put on trial, human rights groups say.

Opposition leader Shaikh Ali Salman is on trial for allegations of trying to overthrow the regime.

His arrest on December 28, shortly after his re-election as head of the main opposition party Al Wefaq, has sparked protests in villages.

A new hearing in his trial, which opened on January 28, is expected to take place on May 20.