Three people have been killed and one person was taken to hospital after a string of stabbings in the Lower Mainland.

A 37-year-old man and a yet-to-be identified female victim were stabbed to death, and a 33-year-old man was arrested, during an altercation at a McDonald’s near Granville Street and No. 3 Road late Friday night.

Police are asking that witnesses, including a woman seen on Granville Street and two men who were in the restaurant at the time of the assault, to contact the RCMP or Crimestoppers.

Earlier that night, in an unrelated incident, a 36-year-old man was killed after being stabbed in an Abbotsford home.

Michael Allan Froese, 25, and Melissa Linda Cox, 28, have been charged with first-degree murder in connection with the death.

Police say the victim, whose name is being withheld at the request of his family, had an “extensive history” with them.

“(The Integrated Homicide Investigation Team) says both the suspects and victim knew each other,” said RCMP Cpl. Dale Carr. “It’s unknown whether there’s a connection to drugs or organized crime.”

A third stabbing that happened early yesterday morning in Burnaby sent one man to hospital in serious but stable condition.

Witnesses said the victim was stabbed at the Superstore and wound up at a Best Western hotel across the street, where he collapsed.