(Photo: LARS HAGBERG/AFP/Getty Images)

One of the two bombers of an Indian restaurant in Canada that left 15 injured last week may be a woman, police officials said.

The Bombay Bhel restaurant in Mississauga, about 28 kms from Toronto, was bombed using a homemade device on May 24. Police initially said the two attackers were men, but investigators now believe one of them could be a woman.

“There is evidence that has come to light through witnesses and some other video that leads investigators to believe that it just may not be a male,” regional police superintendent Rob Ryan was quoted as saying by IANS. “Suspects went to great length to hide their identities,” he said.

The motive for the attack still remains a mystery.

“We do not have a clear motive and no one has claimed responsibility” and “we don’t have any messaging during the incident, before the incident,” Ryan said.”There is nothing to suggest it was a terrorist or a hate crime,” he added.

There were approximately 30 people inside the restaurant when the explosive devise was detonated. The 15 people who were injured have since been released from the hospital.

“We just wanted to take this time to officially say how relieved we are that all 15 people injured in this awful act of crime have been released from the hospital,” a message on the restaurant’s Facebook page said. “Words cannot express how our hearts go out to those families. We wish them a speedy recovery.  We would like to commend and thank all the amazing first responders who were on site within minutes of our initial call to 911 who took such care of our dear customers.”

The Bombay Bhel’s Mississauga branch will remain closed until further notice, however, its three other locations are open for business.