At least 18 people were injured, including four critically, in a stabbing attack at a train station in Germany on Friday, authorities said. The suspect in the stabbing -- a 39-year-old woman -- has been arrested, police said. A magistrate has ordered the suspect to be placed in a psychiatric institution, Hamburg police told ABC News on Saturday.

Italy's Flavio Cobolli won the biggest title of his career when he upset third seed Andrey Rublev 6-2 6-4 to win the Hamburg Open on Saturday.Ranked number 35 in the world, Cobolli had only one ATP 250 title to his name,