[Jimbuna]

A convoy carrying about 100 women and children who were evacuated from the Mariupol steelworks at the weekend is expected to arrive in Ukrainian territory.

However, officials say 200 people remain trapped inside the industrial plant, which is coming under renewed Russian attack.

Ukrainian soldiers there say Russian troops are using planes, tanks and warship missiles to pound the site.

The UN and Red Cross hope to oversee more civilian evacuations from the southern port city.

Meanwhile, UK PM Boris Johnson will describe Ukraine's resistance to the Russian invasion as the country's "finest hour", in a virtual address to its parliament later.

He will also give details of £300m in extra military support from the UK for Ukraine, including electronic warfare equipment.

A senior US official warns Russia may be preparing to hold votes on independence in occupied territory in eastern Ukraine.