Officers were called to Asda House shortly after 11am this morning after the supermarket reported a receiving a suspicious item in the post.
Asda House, the headquarters of Asda in the UK, was evacuated, along with several nearby office buildings.
A man who knows someone who works at Asda told the YEP the person was “on a zoom call with someone when security burst in to evacuate”.
A cordon and road closures - including on Great Wilson Street, Meadow Lane, Neville Street, Victoria Road and Water Lane - were put in place.
Army bomb disposal experts examined the package, which turned out to be a returned electrical item sent to Asda by a customer.
Roads have since reopened.
A West Yorkshire Police spokesman said: "The suspect package incident in Leeds city centre has now concluded safely.
"At 11:12am today, police were called to a report of a suspect package received in the mail at Asda House, in Great Wilson Street, Leeds.
"Staff were evacuated and a cordon and road closures were put in place as a safety precaution.
"The package has now been examined by Army bomb disposal experts and found to contain electrical items returned by a customer.
"The cordon and road closures are now being lifted and we would like to thank the public for their patience."