Migrants rescued from the Mediterranean and turned away by Italy and Malta have arrived in the Spanish port of Valencia.

Three vessels, including the Aquarius, which rescued the 630 migrants a week ago, have now docked in the harbour.

Spain's new socialist government has pledged free healthcare for the migrants and says it will investigate each asylum case.

In the night of June 10, MSF's rescue vessel Aquarius rescued 630 migrants about 50 miles off the libyan coast from two different dinghies.

At least four migrants died during the rescue, according to MSF.

After Italy and Malta refused to allow it to dock, the new Spanish government headed by Socialist Prime Minister Pedro Sanchez offered to allow the Aquarius to dock in Valencia, insisting it was an "obligation" to do so.

After disembarking the migrants in Spain was scheduled, they were transported in three vessels: MSF's Aquarius and Italian coast guard's Dattilo and Orione.

The refusal to accept the Aquarius in Italy was the first major anti-migrant move since far-right Interior Minister Matteo Salvini took office this month.

There are 100 children and seven pregnant women on board, according to the Spanish Red Cross.