A woman dressed in traditional Muslim clothing had her sleeve set on fire outside a designer boutique in Manhattan on Saturday.

The 35-year-old woman had been walking along Fifth Avenue and was outside the Valentino store at 9pm when the attack occurred.

She quickly patted the small flame out herself and noticed the suspect – a man with a lighter in his hand.

The woman, who was visiting New York City from Scotland, flagged down a police officer to report the crime but the suspect had already fled down 54th Street, an NYPD spokesman told Daily Mail Online.

A woman dressed in traditional Muslim clothing had her sleeve set on fire outside a designer boutique in Manhattan on Saturday. File photo

The police department’s Hate Crimes Task Force is investigating to determine if the incident was motivated by bias towards Muslims, the New York Daily News reports.

It comes less than a week after a woman allegedly attacked two Muslim mothers in Brooklyn.

Emirjeta Zhelili reportedly punched the women in the face and attempted to rip their hijabs from their heads on Thursday.

Ibraham Hooper, a spokesman for the Council of American-Islamic Relations, said he urges police to thoroughly investigate a possible bias motive.

The woman, who was visiting the city from Scotland, had been walking along Fifth Avenue and was outside the Valentino store (above) at 9pm on Saturday when the attack occurred

‘It’s almost impossible to keep up with the number of incidents in recent days and months since the mainstreaming of Islamophobia by people like Donald Trump,’ he told Daily Mail Online.

He added that in the past week, the organization has seen numerous complaints of incidents apparently fueled by anti-Muslim sentiment, including an tractor-trailer that crashed into a Maryland mosque.