In pictures: Ten days of war in Ukraine

Ukrainians living in Costa Rica take part in an anti war candlelight vigil in San Jose, Costa Rica (AP Photo/Carlos Gonzalez)

In war-torn areas of Ukraine, residents fled on footpaths and grief-stricken parents mourned dead children as Russian troops continued to shell encircled cities.

A promised cease-fire in the port city of Mariupol collapsed on Saturday amid scenes of terror in the besieged town, while in the outskirts of Kyiv, a stream of residents with pets and children crossed the Irpin River on an improvised path under a bridge destroyed by a Russian airstrike.