MILAN - Italy has expelled a Tunisian who may have had links with the man who killed 12 people in Berlin when he plowed a truck through a busy Christmas market, the Italian interior ministry said on Sunday. The Tunisian, a resident of Latina near Rome, was identified in investigations launched in the wake of the Dec. 19 Berlin attack, the ministry said in a statement. The 37-year old man was the owner of a telephone whose number was found among the contacts of Anis Amri, it said. Amri killed 12 people when he plowed a truck through a Christmas market in Berlin. He was killed in a shootout with police near Milan on Dec. 23.