Bahrain has sentenced more activists to prison for their roles in pro-reform protests, including some who were convicted of trying to burn down a police station.

A security court gave 19 people jail terms on Wednesday — raising the total number of activists sentenced over the past week to at least 81.

Thirteen activists received five-year prison terms on convictions of hurling homemade explosives and other objects at a police station near Manama during demonstrations earlier this year. Six others received one year prison sentences for their roles in pro-reform unrest.

The protests were led by Bahrain's Shi'ite majority. They have been demanding a greater role in the Sunni-led government.