An incident on a flight from Cuba to Frankfurt caused considerable unrest on board and a subsequent arrest at Frankfurt Airport. A heavily intoxicated man behaved extremely aggressively during the journey, so that the federal police had to intervene. The incident highlights the challenges for flight crew and security authorities in dealing with unruly passengers. The 54-year-old man, whose identity has not been published, attracted attention on the flight by repeatedly vomiting and smoking. In addition, he repeatedly insulted the flight crew, which led to an increasingly tense situation on board. Despite repeated requests to stop his behavior, the passenger showed no remorse. After landing in Frankfurt, the man initially refused to leave the plane. The emergency services and the federal police were called to the scene and were faced with aggressive and violent behavior. The passenger tried to kick and hit the emergency services, which ultimately led to him having to be handcuffed. Investigation initiated Extensive investigations have been initiated against the man. The charges include assault and resistance against law enforcement officers, bodily harm, threats and insults. According to the Federal Police, the man was handed over to the state police and taken into protective custody. It is not yet known whether and to what extent criminal consequences will be threatened. A global problem Aggressive behavior by passengers is not an isolated case. According to a study by the International Air Transport Association (IATA), the number of incidents involving unruly passengers has increased in recent years. Factors such as alcohol abuse, stress and the long travel time are often cited as causes. Many airlines have therefore tightened guidelines and are increasingly relying on preventive measures,