LONDON, April 22. /ITAR-TASS/. Chiefs of UK’s intelligence agencies have warned British Prime Minister David Cameron against providing military assistance to Kiev by western states, Daily Mail online version reported on Tuesday.

According to the publication, amid Ukrainian developments, NATO is considering options from economic sanctions against Russia to proposals of military assistance to Kiev. However, “agents of MI6 and Defense Intelligence Staff on the ground warn that the crisis could turn into a violent civil war with much of eastern Ukraine declaring independence,” Daily Mail reports. The intelligence services have warned official London against such escalation of the conflict.

In addition, the publication reported that “unarmed British teams have been moving around the country covertly monitoring border crossing points and towns where Russian support is strongest”.