ACAPULCO, Mexico - Authorities in Mexico's Pacific coast resort of Acapulco said Thursday they received a missing-person report for a Canadian businessman who disappeared there last week.

Investigative Police Director Fernando Monreal said relatives reported businessman Daniel Dion was last seen Friday. He said Dion worked in Acapulco for several years with a company that employs inmates making bags from recycled materials.

Canada's Department of Foreign Affairs and International Trade said in a statement that it "is aware of reports of a Canadian who is missing in Acapulco," but would not confirm the man's name or hometown.

It said Canadian consular officials are working with Mexican authorities to gather information.

Dion reportedly resided in the Ottawa area.

While Acapulco remains a popular getaway for Mexico City residents and foreign tourists, it has been hit by drug-gang violence in recent years.

Fighting between two rival factions of the crumbling Beltran Leyva drug cartel has resulted in shootouts and deaths, and Mayor Jose Luis Avila Sanchez has warned people to stay indoors after dark — an extraordinary pronouncement for a city whose economy depends deeply on nightclubs, restaurants and bars.

"The message is for everyone in Acapulco to keep working ... and avoid going out at night, avoid nightly activities whenever possible," Sanchez told reporters Wednesday night.

At least six people were killed in Acapulco on Wednesday, including three men and five women whose bodies were found bound and blindfolded.

And authorities are investigating the Sept. 30 disappearance of 20 men were visiting Acapulco from the city of Morelia, in neighbouring Michoacan state. Michoacan is dominated by the rival La Familia cartel, raising suspicions about a visit by such a large group of men travelling without their families. Michoacan officials insist they were simply on vacation.