Libya’s health ministry said Thursday that the death toll from the suicide attack against the headquarters of the electoral commission in Tripoli a day earlier had risen to 14.

Six others were wounded in the attack claimed by the Islamic State group (IS), which saw two assailants open fire at guards and officials before blowing themselves up.

The death toll had previously stood at 12 killed and seven injured.

The attack has been strongly condemned by the United Nations, the European Union, France, the United States, Britain and Libya’s internationally recognised Government of National Accord (GNA).