Twenty civilians were killed on Friday after Houthi militants shelled a market and residential neighborhoods in Yemen’s eastern city of Marib.

Local sources said that Houthi militants randomly fired Katyusha rockets and mortar shells at the city.

Yemen has been rocked by months of fighting between the Houthis and loyalists of Yemeni President Abdrabu Mansur Hadi, supported by the Arab coalition, leaving thousands dead and 21 million people in need of urgent aid.