“Security for the long Christmas weekend was heightened throughout Italy and at the Vatican on Saturday following the killing by police of the man believed to be responsible for the Berlin market truck attack.
As investigators sought to determine if Anis Amri had accomplices in Italy, and associates of the 24-year-old were arrested in his home country of Tunisia, national security officials were taking no chances.”
Source: Security stepped up in Italy, at Vatican after truck attack suspect killed | Reuters