A sea rescue charity is taking a lone survivor and the bodies of two dead migrants found at sea to Spain, it said on Wednesday, after clashing with Italy over what should be done with them.

But Italy's interior minister, who has accused charity groups of lying about the circumstances in which they find migrants at sea, questioned the organization's version of events.

Proactiva Open Arms said it recovered the bodies of a woman and a young boy along with one surviving woman in a wrecked boat in the central Mediterranean on Tuesday.