A Russian missile strike killed at least 14 people and injured at least 46 others in the southern Ukrainian city of Odesa on Friday.

Local authorities said the first missile struck a group of houses, and when emergency crews arrived at the scene, a second missile landed.

Among those killed were a paramedic and an emergency service worker.

Ukraine's State Emergency Service and regional governor Oleh Kiper said the attack damaged at least 10 houses and some emergency service equipment.

The tactic of firing a second missile at the same location, aiming to hit rescuers, is known in military terms as a double tap. Such strikes often hit civilians.

Mr Kiper announced that a day of mourning in Odesa would be held on Saturday — the second such observance in less than two weeks.

On March 2, a Russian drone struck a multi-storey building, killing 12 people, including five children.

Since last summer Russia has intensified its attacks on Odesa, a southern port city with a population of around 1 million.

The attacks have primarily targeted port infrastructure, aiming to disrupt the export of goods after Ukraine managed to restore maritime navigation with a series of successful operations in the Black Sea.

Moscow officials have also claimed they are aiming at facilities where Ukrainian sea drones are stored for attacks on Russia's Black Sea fleet.