international agreement, Agreement Between the Government of the Russian Federation and the Government of the Kingdom of… (2005)
“ If nationals of the State of one Party are not in a position to leave the territory of the State of the other Party within the period specified in Article 1 of this Agreement due to exceptional circumstances e.g. illness or natural disaster, and have documentary evidence of such circumstances, those persons may be permitted, upon application, to stay on the territory of this State for an appropriate period necessary to return to the State of their nationality according to the relevant legislation of the host State. ”
