Boris Johnson is due to visit Scotland later, when he's expected to thank staff responding to the pandemic and emphasise the strength of the UK working together to deal with Covid-19. But Scotland's First Minister Nicola Sturgeon says she's "not ecstatic" about the PM crossing the border. Covid regulations bar all but essential travel between Scotland and England - or across Scottish council boundaries - and Ms Sturgeon questions whether the visit meets that criteria.

Downing Street insists it's important for the prime minister to be "visible and accessible" across the UK. The visit is widely seen as part of a "charm offensive" in response to polls indicating a rise in support for Scottish independence. Mr Johnson argues the "great benefits of cooperation across the whole of the UK" have never been clearer, pointing to financial support received in Scotland, along with provision for testing and vaccination. SNP MP Neale Hanvey says the trip is a "futile" attempt to bolster the union.

Can the EU and Covid vaccine maker AstraZeneca sort out supply shortages? Production issues at European plants led the pharmaceutical to warn it would not deliver all 80 million doses promised to the EU before April. It prompted Brussels to demand stock be diverted from the UK, which had signed its contract three months before the EU. Now, after "constructive" talks, Health Commissioner Stella Kyriakides says the EU will "work with the company to find solutions". AstraZeneca is committing to "even closer co-ordination". UK PM Boris Johnson says he's "confident of our supplies".

The new US climate envoy says a summit in Glasgow this November will be crucial. Dozens of world leaders will attend the United Nations COP26 conference. And the former Secretary of State John Kerry, who has been given the climate role by President Joe Biden, tells the BBC: "Glasgow will be extremely important. It is the last best chance the world has to come together in order to do the things we need to do to avoid the worst consequences of the climate crisis."

The dispute between the EU and AstraZeneca over coronavirus vaccine supplies leads most papers. "EU demands share of UK's vaccines," is how the i sums up Brussels asking the company to divert jabs made in British factories to make up for a shortfall on the continent. The Daily Telegraph says MEPs have threatened to block exports of the Belgian-made Pfizer vaccine to the UK, while the Financial Times says the dispute risks "an explosive post-Brexit political fight". The Daily Mail's headline reads: "No, EU can't have our jabs!" Read the review.

With carnival parades not possible in New Orleans during Mardi Gras this year, homeowners were asked to employ the artists to turn entire houses into floats. See the spectacular results. And read how a phone call in the middle of the night led a Swiss lawyer on a 20-year hunt for billions of pounds stolen by Nigeria's former leader Sani Abacha.

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