The circumstances of the migrants' deaths remain unknown, the International Organization for Migration said. Libya is part of the deadly Mediterranean migratory route.

The Venice Biennale, which runs this year from April 20 to November 24, is one of the world's most prestigious international art shows, alongside the documents in the German city of Kassel.

A museum in Nigeria is attracting visitors with decoration and works of art made from upcycled materials. The museum wants to encourage recycling to protect the environment and teach young people how to live more sustainably.