Loyalist forces backed by Saudi-led naval shelling thwarted a new rebel assault in Yemen's main southern city of Aden.
Militia loyal to fugitive President Abedrabbo Mansour Hadi battled rebels attempting to advance on a port in the city's Mualla district, witnesses said.
Four loyalist militiamen were killed and 12 wounded, a medic at a military hospital told AFP.
Six Shiite Huthi rebels were killed, an army source said.
Residents said that the loyalists had pushed the rebels further from the port, as warships of the Saudi-led coalition shelled rebel positions across Aden.