US and Canadian operation to find Titanic wreck explorers

A massive search and rescue operation is under way in the Atlantic Ocean after a tourist submersible went missing during a dive to the wreck of the Titanic.

A delegation from the European Parliament is visiting the Italian island of Lampedusa, after the sinking of a fishing vessel in the Mediterranean Sea last week; 500 people are still thought to be missing.

And we'll hear how a wave of violence and instability has made work in the Virunga national park in the Democratic Republic of Congo harder for those in charge of the world heritage site.