At least six people have been killed, with another 40 still missing, after a rubber dinghy carrying refugees capsized Tuesday in the Mediterranean Sea off the Italian island of Lampedusa. Only 10 survivors have been rescued. The boat departed from Sfax, Tunisia, and the passengers were from Cameroon, Ivory Coast, Guinea and Mali. At least 270 refugees have already died this year trying to cross the Mediterranean to seek safety in Europe.