Italian authorities on Monday were investigating the disappearance of a Wisconsin student in Rome a day after he arrived in the Italian capital.

Beau Solomon, 19, went out to a pub with friends Thursday night, hours after landing in Rome to study at John Cabot University.

The school was "alerted by his roommate who reported that he had lost contact with Beau around 1 a.m. on Thursday night." Officials said he failed to show up at orientation Friday moing. His family says his credit cards have been used since he disappeared.

The university was in contact with Italian authorities, the U.S. Embassy and the student's home school, the University of Wisconsin-Madison, Cabot President Franco Pavoncello told the Associated Press.

Solomon's brother Jake told the Milwaukee Joual Sentinel that if Beau was kidnapped, his abductor "has it coming."

Relatives also said Beau Solomon had survived a childhood cancer battle that lasted 10 years. "All three of us (brothers) are aligned on the fact that Beau is the toughest S.O.B. that we've ever met," Jake Solomon added.

Solomon is from Spring Green and UW-Madison said he had just completed his first year as a personal finance major. His family said he dreamed of becoming a lawyer.

Solomon's case marks the latest dramatic development involving an American student in Italy.

In 2012, a U.S. student was allegedly stabbed by his roommate, a fellow student at John Cabot University, after what police said was a night of alcohol and possible drug use and Halloween partying. The stabbed student survived.

Also in recent years, a young American man, recently arrived in Rome for studies, apparently fell off a low wall, where many people sit at nighttime, and landed several yards below on the cement banks of the Tiber River near the Trastevere neighborhood.

Trastevere and the Camp de' Fiori Piazza areas are filled with pubs, bars and cafes, many of them frequented by U.S. students who do "pub crawls."

In another case, another young American male student, who had been reported missing after leaving a bar, was found dead near train tracks in a tuel, apparently hit by a train in the early moing hours.

The Associated Press contributed to this report.