Ahmed Alaklouk, 22, from Tunisia but with a Saudi Arabian passport, was discovered to be in the US illegally after his student visa was terminated in September last year

An illegal immigrant has been charged with firearms offences after police became concerned when he was found with a series of weapons while staying in a hotel room overlooking the Women's March in Indianapolis.

Ahmed Alaklouk, 22, from Tunisia but with a Saudi Arabian passport, was discovered to be in the US illegally after his student visa was terminated in September last year.

He has also been charged with separate offenses of intimidation, battery and firearms possession after being accused of threatening to kill a woman and her father who claimed he sold a faulty product at his tire shop.

Police first encountered Alaklouk on January 20 at the Hyatt Regency hotel after security saw six handguns and a rifle in the front seat of his car and called cops, CBS4 reports.

Officers - who said the rifle had been modified to resemble an AR-15 and included a scope, bump stock and bipod - told Alaklouk to put the weapons in a safer place because they might be stolen.

Alaklouk claimed the rifle belonged to his father before moving it to the back seat of his car.

But when he returned the rifle to the front, security became concerned because his room overlooked the Women's March scheduled that day.

About 3,500 attended the rally.

Later that morning, cops and security removed Alaklouk from the hotel and began watching his business, Medo Tire Shop.

Homeland Security officials also began looking into Alaklouk and discovered that he was living in the US illegally.

When Alaklouk returned the rifle to the front seat of his car, security became concerned because his room overlooked the Women's March (pictured) scheduled that day

About 3,500 attended the rally in Indianapolis (pictured). Later that morning, cops and security removed Alaklouk from the hotel and began watching his business, Medo Tire Shop

Then a week later, Alaklouk is accused of threatening to kill a customer.

The customer had claimed a tire he sold her was faulty, which developed into an altercation and led to Alaklouk and one of his employees pulling handguns on her and her father.

She then allegedly got out a gun of her own and fired it in the air, at which point Alaklouk is accused of bringing out a rifle and threatening to kill the customer and her father.

He is accused of going on to commit battery and criminal confinement by parking his truck behind the customer's car and stopping her from leaving.

Cops were called and found two pellet guns at the business and a handgun at Alaklouk's home.

Homeland Security officials also began looking into Alaklouk and discovered that he was living in the US illegally. Pictured: The rally in Indianapolis

The accused then claimed the rifle was actually his, not his father's, and claimed it was taken as payment for work on a car.

He kept the guns in his car because his wife disapproved of keeping them in the home, he claimed.

As well as federal charges Alaklouk, is charged locally with two counts of criminal confinement, two counts of intimidation, one count of unlawful possession of a firearm and one count of battery.

The battery charge is a misdemeanor, but the others are felonies.