Polish police are investigating after a Russian artist, who was a prominent protestor against Vladimir Putin, was gunned down in what appears to be an execution-style shooting.

Robert Kuzovkov, who was also known as Semyon Skrepetsky, was shot on the street in the Polish town of Biala Podlaska on Monday.

A police spokesman told journalists the "perpetrator's motives" were unknown but Skrepetsky made his name with satirical cartoons mocking the Russian leader and reportedly left the country five years ago to avoid persecution.

He was pictured last week in a protest outside the Russian embassy in Berlin holding a picture showing Putin as a baby being fed by the Soviet dictator Stalin.

It comes a day after 11 people were killed in Russian missile strikes on Ukraine that damaged art museums, film studios and a cathedral which is a UNESCO world heritage site in Kyiv.

The value of anonymous work sold at auction in the last seven days, according to data gathered by HENI Art News. The 207 lots sold between June 9 and 16, commonly listed under the "No Artist" category, include historic artifacts, unsigned paintings and folk art where the creator's name was never recorded or has been lost to history.

JR's monumental installation on the Pont Neuf in Paris has finally opened despite what he described as a "climate odyssey" of strong winds, a heatwave, rain and hail that threatened to derail the project.

The work, a tribute to Christo and Jeanne-Claude's wrapping of the famous bridge, has transformed the landmark into a giant cavern in the heart of the French capital.

It opened yesterday after its planned debut on June 2 was delayed because of damage caused by high winds and will stay in place until June 28.

JR said: "Art is a transformation, and a way of renewing the way we look at the world around us. Through the dream of La Caverne du Pont Neuf, this is what I hope to make possible in Paris."

Tributes have been paid to artist and gallerist Danny Simmons who has died aged 72.

Simmons, the brother of hip-hop mogul and Def Jam founder Russell Simmons and Run DMC star Joseph "Run" Simmons, started out as a social worker in his native New York but gave it up to paint full time and run galleries in the city.

He later moved to Philadelphia and ran his Rush Philanthropic Arts Organization which supported Black artists.

His brother Russell said Danny was "the true artist in the family", adding: "Joey and I went into music … but Danny was the one who created from the deepest place."

His work can be seen in the city's Woodmere art museum and the Pennsylvania Academy of Fine Arts.

1 - Njideka Akunyili Crosby's portrait of Barack and Michelle Obama - the first official portrait of the couple - was unveiled yesterday at the Obama Presidential Center on Chicago's Southside. It includes imagery referencing their life including Mrs Obama's childhood home and the cover of Stevie Wonder's Talking Book album which was played at their wedding.

2 - Artifacts from the collection of London's Jewish Museum will go on show in a new temporary exhibition space at the JW3 center in the city. The museum closed in 2023 and plans for a new permanent home for its collection, which includes work by Rembrandt and Fred Kormis, are still being finalized.

3 - David Kordansky gallery has taken over the representation of the estate of sculptor Keith Sonnier with immediate effect and has taken some of his work to Art Basel. It will also host an exhibition of his work in Los Angeles later this year. The estate was represented by Pace gallery which recently announced it was letting go of some artists and cutting staff.

4 - Sandro Botticelli’s Madonna and Child is the latest masterpiece brought to India by the Italian embassy. It has gone on show at its cultural center in Delhi a year after Caravaggio's Mary Magdalene in Ecstasy made the same journey.

5 - Jesus Rafael Soto's first outdoor work in the UK has gone on show in London today. It will be outside the Serpentine South gallery until October 25.