The UN said the latest reports from Ukraine show the need for "immediate de-escalation of the conflict."
The UN spokesperson said the organisation was not able to verify reports of Ukrainian shelling of Russian armoured convoy, which Ukraine said crossed border into Ukraine during the night.
Russia has denied that its troops entered its neighbour's territory.
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The woman had passed out on the motorway while her baby sat in the back seat.
Samantha Jefferies and husband Clive had been undergoing fertility treatment when he died suddenly, aged 51, of a brain haemorrhage.
Met Office issue warning as 70mph winds set to hit the Northwest in next 24 hours.