Four Swedish police officers took a break from their New York vacation to answer the call of duty Wednesday, breaking up an out-of-control fight between two homeless men on a Manhattan subway train.

The Scandinavian patrolmen said they were on their way to see a performance of Les Misérables when they heard the operator of their uptown 6 train yell frantically over the intercom, "Are there any police officers on the train?!"

"We thought maybe someone needed help," Samuel Kvarzell, 25, a rookie with the Stockholm Police Department, told the New York Post.

When they made their way to the front of the train, they saw one homeless man beating the other senseless, as terrified strangers fled the car into the Bleecker Street station.

The three Swedish officers eventually wrestled the man into submission and managed to apply an arm lock, while waiting for the NYPD to arrive.