Prime Minister Boris Johnson on Friday urged Britons to act responsibly when pubs reopen this weekend and not to blow the collective effort to stop the spread of the coronavirus.

The latest phase in a gradual reopening of the British economy on Saturday will see pubs in England open for the first time since mid-March,.

The much-awaited event has been dubbed “Super Saturday” in the media, sparking worries that after months cooped up indoors, some people could get carried away and risk spreading Covid-19.

“I hope very much that people will behave responsibly and enjoy summer safely,” Johnson told LBC radio, defending the timing of the reopening by saying it was based on a clear understanding of te risks. We think we’re in good shape, but my message is, let’s not blow it now.”

He will use a government news conference to warn that businesses, livelihoods and the future of the whole economy depends on respecting social distancing rules.