Both happened in the area between Gouin Boulevard West and Cloverdale Street.
Montreal police spokesperson Anthony Cantelmi said the first incident happened overnight Saturday. He said two or three suspects went into a home and left with a 53-year-old man.
They then went to an unknown location overnight, he said. Authorities are unsure whether the man willingly made his way to the second location or if he was kidnapped.
The suspects allegedly brought the victim back to the neighbourhood on Sunday.
The victim was later taken to hospital to be treated for non life-threatening injuries.
Cantelmi said the second incident, this time involving a 50-year-old man, took place Sunday afternoon.
"They tried to extort money from him and told the suspect they would be back later to collect the money. As they left, they took with them various valuable objects like electronics," said Cantelmi.
Investigators are now questioning the victims.
Authorities say the suspects in both cases were the same people, and that the two victims knew each other.
Police have yet to confirm if the victims and suspects are also acquainted.
Cantelmi said there is no reason for the public to be worried as investigators believe the suspects targeted the two victims.