Bahrain's justice ministry filed a lawsuit on Monday seeking to dissolve a main opposition group on the grounds that it undermined security, state news agency BNA reported.

The secular National Democratic Action Society, or Waad, had perpetrated "serious violations targeting the principle of respecting the rule of law, supporting terrorism and sanctioning violence by glorifying people convicted for terrorism cases," the ministry said. 

Authorities have piled pressure on the country's opposition in recent months, dissolving the largest opposition group Al Wefaq last year and revoking the citizenship of the country's top cleric.

Violence has jumped this year after authorities carried out a death sentence on three men convicted of a deadly bombing on policemen in 2014, followed by the shooting deaths of two policemen and three militant fugitives.

Source: Timesofoman