The youths apparently had an argument with another group in the town, but turned on bar staff and security when they tried to intervene, according to local media. It is suspected that about 20 men were involved in the attack last week.
The violent attack saw chairs thrown at bar staff, who could be seen blocking the furniture with their own chairs.
The bar is known as the Aloha Bar and is located near the main street, in Portimao in the Algarve region of Portugal.
The group started throwing chairs at the glass doors of the bar during the attack around 1am on June 20th. They then proceeded to target a staff member while holding up his own chair to block the projectiles.
Portugal’s civilian police force in Portimao (PSP) claimed to have identified seven of the 20 or so youths after locating them at a local hotel.
Portimao Council has also confirmed to local news website Portugal Resident that it wants to install 32 CCTV cameras in the area to help reduce violent crime.
It also says it will place a permanent PSP station in the area to prevent similar attacks.
The town, formerly a small fishing area, has exploded since locals began embracing the tourism industry in the 1980s.
Now a popular resort town with luxury hotels, the center of the tourist area is full of pubs and restaurants and was the scene of several fights.
READ MORE: America’s Got Talent: viewers left in tears after ’emotional’ audition
However, now that the tourism industry is recovering, it remains to be seen whether countries will blame British for any increase in crime in their cities, especially after incidents like this.
The government of the Balearic Islands, responsible for popular destinations such as Mallorca, Menorca and Ibiza, has implemented laws limiting the amount of all-inclusive drinks that resorts can serve their guests.
Holiday operator Thomas Cook said: “Please note that a decree has been issued by the Balearic government over a new restriction on all-inclusive meal options.”
“There is a maximum of six alcoholic drinks per person per day that can be served and these drinks will only be provided during lunch and dinner (three each).”