Students in Scotland are being told not to go to pubs, parties or restaurants this weekend in a bid to stem a spate of coronavirus outbreaks
Hundreds of university students have tested positive at campuses across the country, with many more self-isolating.
Universities have now pledged to make it "absolutely clear" to students that there must be no parties.
And they will not be allowed to socialise with anyone outside of their accommodation.
Students have also been warned that any breaches of the new rules "will not be tolerated".
The stricter guidelines were announced after opposition leaders accused First Minister Nicola Sturgeon of a "basic failure" to anticipate the problem and provide more testing on university campuses.
Universities Scotland said the new guidance that had been agreed with the Scottish government was a "necessary step at this crucial moment of managing the virus in the student population, to protect students and the wider community".
The new rules state that all universities will "make absolutely clear to students that there must be no parties, and no socialising outside their households".
They go on to say: "This weekend, the first of the new tighter Scottish government guidance, we will require students to avoid all socialising outside of their households and outside of their accommodation.
"We will ask them not to go to bars or other hospitality venues."
Extra staff will be brought into student accommodation to watch for any breaches of the guidance and to support students who are self-isolating.
