Video footage appears to show a group of travelers pushing past barriers and punching at least one other guest.

Carnival Cruise Line said in a statement, "The incident occurred in the debarkation area under the authority of U.S. Customs and Border (Protection). This matter has been turned over to law enforcement.

Carnival Jubilee passengers disembarking at Galveston's Terminal 25 Saturday morning found themselves in the middle of and, in a few cases, participating in "absolute mayhem" and "pure chaos"—a knock-down,