Three people earlier listed in critical condition after an explosion a restaurant in Canada have been upgraded to stable condition, authorities confirmed to ABC News.

At least 15 people were hurt around 10:30 p.m. local time when an improvised explosive device was detonated at Bombay Bhel Indian, according to authorities in Mississauga, a city immediately southwest of Toronto.

The three severely injured individuals were taken to a trauma center in Toronto, police said.

Peel Regional Police said they're still currently looking for two male suspects who fled the scene.

2 suspects attended the scene, detonated an Improvised Explosive Device within the restaurant. Several injured were taken to local hospital and 3 in critical condition were taken to a Toronto Trauma Centre. pic.twitter.com/yzCT59UVN6 — Peel Regional Police (@PeelPoliceMedia) May 25, 2018

One suspect was described as 5-foot-10 to 6-feet tall, stocky, mid-20s, light skin and he was wearing blue jeans, a dark zip-up hoodie and a baseball cap. His face was covered with a black cloth.

The other suspect was described as 5-foot-9 to 5-foot-10, fair skin, thin and he was wearing faded blue jeans, a dark zip-up hoodie, a gray T-shirt and dark-colored skate shoes. His face was covered.

The investigation is ongoing and, at this time, the attack is not being treated as terrorism or a hate crime, police said.

Please contact (905) 453-2121 or 12CIB at ext. 1233 — Peel Regional Police (@PeelPoliceMedia) May 25, 2018

ABC News' Briana Montalvo contributed to this developing story. Check back for updates.