The family of a Mississauga teen who has been missing since Sunday night is pleading for her safe return.

Peel Regional Police say Soleil Fleury was last seen on Sunday night at about 10 p.m. in the area of The Credit Woodlands and Dundas Street West in the Erindale area of Mississauga.

Volunteers spent Wednesday helping Susan Clarke and Mario Fleury, Soleil’s parents, search the woods at Erindale Park in Mississauga in an attempt to locate their 15-year-old daughter.

Peel police are also canvassing homes in the area, but so far have had no luck.

“We’ve questioned students at the school and we really at this point have no clue as to why she has left and where she might have gone” said the missing teen’s father Mario.

“Her phone has been dead since 10 o’clock on Sunday night.”

Police told CTV News Toronto they’ve checked her banking records for withdrawals at any ATMs and that the teen’s cellphone last pinged near her father’s home on Sunday night. Police say no foul play is suspected and the disappearance is an active missing person’s case.

Flyers with Fluery’s photo are being posted around the neighbourhood.

“I would like to think that we’re going to find her but then I wake up in the middle of the night and I think the worst things,” Clarke told CTV News Toronto while holding back tears.

Clarke and her husband adopted Fleury when she was just 11 months old. Her parents say she’s a straight-A student at St. Trinity high school in Oakville, but struggled with depression in the past, for which she received ongoing professional help.

Fleury is described as an Asian female standing five-feet-tall, with shoulder-length black hair.

She was possibly wearing her high school uniform when she left her father’s home, consisting of a burgundy kilt, grey socks, a burgundy polo and a navy sweater. She may also be wearing ‘Ked’ style sneakers and a dark hoodie.

Fleury is also known to wear bracelets, including one with a glass turtle icon and also wears several silver rings with small gemstones. One of the rings has a turtle on it.

Clarke says the entire family is quite worried.

“We are terrified and feel completely lost as to where she might be,” she wrote on Facebook.

Police are asking anyone with information on Soleil’s whereabouts to call 905-453-2121, ext. 1133.