Police investigating double homicide after 2 women found dead in Longueuil apartment
Police confirmed Wednesday evening they have opened a double homicide investigation after the bodies of two women were found in an apartment on Montreal's South Shore.
The deaths of the two women — a woman in her 80s and another in her 60s — were initially investigated as suspicious.
Longueuil police spokesperson Mélanie Mercille said Wednesday night homicide investigators are now leading the probe and are set to speak to a "person of interest" later in the evening.
Longueuil police said that a 911 call around 11:30 a.m. Wednesday prompted officers to visit an apartment on des Ormeaux Boulevard in Longueuil.
"Arriving at the scene, our officers noted the death of both people," said police spokesperson François Boucher.
The man who is set to be questioned by police was sent to hospital to be treated for shock.
- READ MORE: CTVNewsMontreal.ca's continued coverage of crime and policing in the Greater Montreal Area
Neighbours told CTV News at the scene that the two victims were a mother and daughter. They said they often heard screaming from the apartment, adding that the man in his 30s who was hospitalized is related to the two women and suffers from a mental health issue.
The police service is asking anyone with information to contact them immediately by calling 911.
CTVNews.ca Top Stories

Alleged Montreal-area 'Chinese police stations' planning to sue RCMP for $2.5 million
Two Chinese community centres in the Montreal area are planning to launch a $2.5 million defamation lawsuit against the RCMP and the Attorney General of Canada after being accused by the police force of hosting 'alleged Chinese police stations.'
With Canada set to reimpose cap on working hours, international students worry about paying for tuition, living expenses
Canada is set to reimpose the cap on the number of hours that international students can work off campus. But with heightened cost-of-living concerns in Canada, many international students say they're not sure how they'll be able to afford their tuition and living expenses if they can't work full-time.
Inmate stabbed Derek Chauvin 22 times, charged with attempted murder, prosecutors say
A federal inmate was charged Friday with attempted murder in the prison stabbing of Derek Chauvin, the former Minneapolis police officer convicted of murdering George Floyd.
Lawyer in Ali murder trial says 13-year-old B.C. victim was not an 'innocent'
Ibrahim Ali's lawyer says the 13-year-old girl he's accused of murdering in a British Columbia park wasn't the “innocent” depicted in a “rose-coloured” portrayal by the Crown at trial.
'Jumped over their heads': Kangaroo escapes Ontario zoo during overnight stay
The search for a kangaroo that escaped an Ontario zoo will resume on Saturday morning, according to volunteers attempting to catch the marsupial.
Mild, rainy winter expected as Canada warms at twice the global rate
Winter will be unusually warm and rainy across much of the country this year, according to the latest data from Environment and Climate Change Canada.
Paraguay official resigns after signing agreement with fictional country
A Paraguayan government official was replaced after it was revealed that he signed a memorandum of understanding with representatives of a fugitive Indian guru's fictional country, who also appear to have duped several local officials in the South American country.
CSIS to probe B.C. office after allegations of rape, harassment and toxic workplace
Canada's spy agency says it has launched a workplace assessment of its British Columbia office over 'serious allegations' raised by whistleblowers who say they were sexually assaulted and harassed by a senior officer.
Judge rejects Trump's claim of immunity in his federal 2020 election prosecution
Donald Trump is not immune from prosecution in his election interference case in Washington, a federal judge ruled Friday, knocking down the Republican's bid to derail the case charging him with plotting to overturn the 2020 presidential election.