NATO chief Jens Stoltenberg on Tuesday said the alliance would not pull back in its support for Ukraine, calling on partners to pledge more winter aid for Kyiv as it braced itself for more cold and darkness due to Russian attacks on infrastructure.

NATO foreign ministers meeting in Bucharest are focusing on ramping up military assistance for Ukraine, even as diplomats acknowledge supply and capacity issues, but also discuss non-lethal aid. Part of this non-lethal aid - goods such as fuel, medical supplies, winter equipment and drone jammers - has been delivered through a NATO assistance package that allies can contribute to.