'Disappointing' that South Kesteven is in tier 4 – but 'there really is no choice'

South Kesteven District Council has reacted to news that the district, and county, will be placed in tier 4 from tomorrow (Thursday, December 31).

Swathes of the country have moved up into higher tiers in the face of the threat from the new coronavirus variant that is spreading rapidly across the country.

What does Tier 4 mean?