London, Aug. 18 -- A special envoy of US President Donald Trump has claimed that Russia had agreed to allow the Europe and US to give Ukraine security guarantees as part of a potential peace deal.

CNN quoted Steve Witkoff saying it was agreed at the Alaska summit that the US and Europe could "effectively offer Article 5-like language to cover a security guarantee", referring to NATO's principle that an attack on one member is an attack on all.

Witkoff suggested the arrangement could be an alternative if the Ukrainians "can live with it".

Ukrainian President Zelensky has described the US's security guarantee offer as "historic" ahead of talks with Trump and European leaders on Monday.

Zelensky said any guarantee "must really be very pra...