( CNN ) -- Canadian police say they 're looking for possible connections between the discovery of severed body parts in two cities , including what appears to be a human foot mailed to the headquarters of the ruling Conservative Party . The grisly find in an office tower in Ottawa on Tuesday came the same day that a janitor found human remains -- but not a full human body -- behind an apartment building in Montreal , about 200 km ( 160 miles ) away . Police also confirmed late Tuesday the discovery of a second human body part in Ottawa . No other details were immediately available . `` It would be foolish for us to disregard what is going on in Montreal , '' Constable Marc Soucy , an Ottawa police spokesman , told CNN . But both Soucy and Constable Daniel Fortier , his counterpart in Montreal , said there was no known connection between the incidents Tuesday night . `` 'It 's too soon to make any links between those two events , '' Fortier said . Soucy said a hazardous materials team was sent to the office tower that houses the Conservative offices in Ottawa shortly after 11 a.m. after workers reported a suspicious package . The officers who responded noticed what appeared to be bloodstains on the box , he said . Ottawa police Sgt . Steve Hodgson told reporters outside the office that the package had been addressed to the Conservative Party . Staffers had begun to open the package before calling police , he said . The party , led by Prime Minister Stephen Harper , had no comment on the incident Tuesday evening . Police are still calling the foot `` possibly '' human as they await tests from medical examiners , Soucy said . He would not discuss the condition of the appendage , whether any note accompanied the package or where it had been postmarked . Ottawa 's major-crimes unit is checking with other police departments for similar cases and looking back through missing-persons files for any clues , Soucy said . `` We 're going to look at every avenue , '' he said . In Montreal , Fortier said investigators have no reports of missing people who might fit the description of the remains found Tuesday . He said a janitor made the discovery while looking into a report of `` smelly garbage '' Tuesday morning , and police do n't know how long the remains might have been there . CNN 's Jake Carpenter , Paula Newton and Matt Smith contributed to this report .
Police say it 's too soon to link grisly discoveries in Montreal and Ottawa . Score: 6 A janitor found other body parts behind a Montreal apartment building . `` We 're going to look at every avenue , '' an Ottawa police spokesman says .