rescue

The main Catholic cleric in the region has told the BBC that Nigeria's government is making "no meaningful effort" to rescue those still missing.

Photos show vehicles and houses submerged in the city, while desperate residents await rescue on their rooftops.

The former president Thomas Jefferson came to the rescue, selling his library of 6,000 books to Congress to jump-start another collection.

On Tuesday Prince William returned to the region of north Wales where he previously spent several years serving as a search and rescue helicopter pilot in the RAF.

"We are ready to give everything to ensure that the remaining pupils and their teachers still in captivity are rescued unhurt," he said, in a statement issued after talks with the state governor.