The Malta Hotels and Restaurants Association has called for firm action after residents in St Julian's reportedly faced intimidation, shouting and aggressive behaviour by a group of individuals.
In a statement, the MHRA said those responsible must be identified, apprehended and prosecuted "to the full extent of the law", stressing that violence and intimidation have no place in Malta's tourism areas.
The association said Malta welcomes millions of visitors every year, the vast majority of whom respect the country, its people and its laws.
However, it said anyone who comes to Malta to behave aggressively, intimidate others or engage in violence should not be tolerated.
"Malta will always welcome responsible visitors, but there will be zero tolerance for violence, intimidation or criminal behaviour," the MHRA said.
The association said it works closely with the Malta Police Force and supports the action being taken to address such incidents. It added that strong enforcement is needed to ensure that those responsible are brought to justice and to make clear that criminal behaviour will not be accepted.
The MHRA said the actions of a small minority should not be allowed to damage Malta's reputation or threaten the tourism industry, which it described as central to the economy and the livelihood of thousands of Maltese and Gozitan families.
It said that if Malta wants to attract quality tourism, it must also show that respect for local communities and the rule of law is non-negotiable.
The association added that firm enforcement is essential to protect communities, preserve Malta's international reputation and ensure that the country remains a safe, orderly and welcoming destination.
"The message is unequivocal: everyone is welcome in Malta, provided they respect our people, our laws and our way of life. Thugs are not," the MHRA said.