A bomb squad has been deployed with nearby buildings evacuated by police.
West Yorkshire Police said: “We have received a report of a suspicious package at a building in the Queen Street area of Leeds City Centre.
“EOD is attending to assess the situation but, as a precautionary measure, has advised an immediate evacuation of buildings in the immediate vicinity.
“Affected streets include Queen Street, Quebec Street and King Street.
“This incident is ongoing.”
One evacuated worker claimed the bomb threat came from the Bank of England on King Street.
She wrote on Twitter: “Bomb scare at bank of England near king street, my office has been evacuated but could be some time before we’re able to return.”
The reported incident and consequent road closers has caused traffic to be gridlocked on the high street.
Bus services in and around the area are also on diversion.
Another user said: “Police have just said King Street is going to be closed for hours and Leeds city centre likely to stay gridlocked – in and out of town Wellington Street is solid.”
A third said: “We’ve been evacuated from city point on kings street. Surrounding roads closed.”
Matt Naylor, who works on the corner of Britannia Street and York Place, described the situation as “unnerving” but insisted he had not yet been evacuated.
The 46-year-old told Leeds Live: “I saw the police at about 11.30am and an officer was cordoning off the street.
“I opened the window and heard him say to a person on the pavement that there had been a suspicious package found.
“It’s unnerving to be honest.”
This is a developing story, more to follow…