BORIS JOHNSON is under increased pressure to limit his Christmas relaxation of restrictions as medics warned of an “unrelenting tsunami” of coronavirus cases over the coming weeks.

The Prime Minister did not rule out a third lockdown for England today, while health chiefs predicted that frontline NHS services would be snowed under with demand as a result of the festive free-for-all.

Northern Ireland and Wales are set for lockdowns in the days after Christmas, while in Scotland the option for a post-Christmas lockdown “remains on the table,” Health Secretary Jeane Freeman said.