(CNN) Italy reported a 50% increase in coronavirus cases Sunday, as the US further restricted travel and the famed La Scala opera house closed.

Italy's Civil Protection Authority reported the country now has 1,694 confirmed coronavirus cases, up from 1,128 confirmed cases on Saturday. Thirty-four people have died.

Italy has the most coronavirus cases of any country outside of Asia.

Delta Air Lines is suspending its US flights to Milan, the carrier announced Sunday. The last flight out will be depart New York on Monday. The last return flight will be on Tuesday.

Delta said it will resume flights to Milan on May 1. Rome flights are not affected.

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