Mediterranean Sea migrant smuggling
According to the United Nations, human smuggling is defined as "the procurement, in order to obtain, directly or indirectly, a financial or other material benefit, of the illegal entry of a person into a State Party of which the person is not a national or a permanent resident." The terms "people smuggling" and "migrant smuggling" are often used interchangeably with "human smuggling", and follow the same definition provided by the United Nations. Migrant smuggling is a blue crime, meaning a form of transnational organized crime at sea.
Source: Wikipedia — Mediterranean Sea migrant smuggling (CC BY-SA 4.0)