. In this picture made by CCTV filmed by the Peel Regional Police, two suspects enter a glbad door of the Bombay Bhel Indian restaurant on Thursday, May 24, 2018, in Mississauga, a suburb of Toronto, Canada. Police are searching for the two suspects in connection with the explosion caused by an "improvised explosive device" that went through the restaurant and injured 15 people, Canadian police said.
(Peel Regional Police via AP)
Authorities said they were lying in wait for two people in connection with an explosion on Thursday of an "improvised explosive device" at an Indian restaurant in Canada.
The explosion at Bombay Bhel restaurant, in the Toronto suburb of Mississauga, occurred around 10:30 p.m. local time; two people, who wore hooded sweatshirts and had their faces covered, entered and left the device before taking off from the scene, authorities said.
Police said it did not look like the explosion was related to terrorism or it was a hate crime.
"There is no indication that this is an act of terrorism, there is no indication that this is a hate crime at this time," said Peel Regional Police Chief Jennifer Evans. "All police resources are now being used to locate the people responsible for this horrendous act."
Police stand in front of Bombay Bhel restaurant in Mississauga, Canada on Friday.
(Doug Ives / The Canadian Press through AP)
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Fifteen people were injured in the explosion, but police tweeted on Friday that all those who received treatment at the hospital were released.
The square where the restaurant is located remained sealed on Friday.
One of the individuals brought an object that looked like a bucket or a can of paint in the restaurant, according to regional police sergeant Peel. Matt Bertram, who added that neither the motive nor the type of explosives used were immediately clear.
"Nothing was said for these individuals," he said previously. "It seems that they simply entered, they left this device and took off immediately."
After the explosion, the police issued a statement describing how the wanted persons looked and solicited the public's help in identifying them.  3 MURDER ATTEMPTS ADDED IN CASE OF TORONTO VAN ATTACK
The first was said to be around 20 years old, between 5 feet 10 and 6 feet tall, with a sturdy build, wearing blue jeans Dark, dark zip sweatshirt and a baseball cap, police said. The second person was described as slightly shorter with a thin construction. They wore faded blue jeans, a dark hooded sweatshirt with a zipper, a T-shirt, and dark-colored shoes, police said.
Rafael Concaceicao, a student from Sao Paulo, Brazil, was at a nearby restaurant when he heard "shouting" and "They rushed to help."
"The glbad broke in the street," he told the CBC. " There was a birthday party for a child. Everything was destroyed. A lot of blood on the floor. Many people were screaming. They were trying to run out of the restaurant. There was a guy with glbad inside his eyes. A lot of people were bleeding a lot. "
Fox News & Stephen Sorace and The Associated Press contributed to this report.