The 35-year-old man was arrested following an incident where a suspicious package was found in Harewood Street in the city centre at about 8.40am.
A cordon was put in place and nearby premises were evacuated until army bomb disposal experts were able to declare the item safe.
The man arrested is currently in custody.
Chief Superintendent Paul Money, Leeds District Commander, said: "We always treat any incident of this nature very seriously, and we quickly put appropriate measures in place to keep people safe while this incident was dealt with.
"Enquiries have led to the arrest of a suspect and we hope people can take suitable reassurance from that development as we continue to progress the investigation."
Leeds Man Jailed for 12 Years After Horrific Campaign of Domestic Abuse
MK’s Most Popular Library Expands with Flexible Spaces for All
West Yorkshire Police Officer Charged with Sexual Assault
Bradford’s Cllr Kamran Hussain Recognised Nationally for Outstanding Community Leadership
Yorkshire’s Winter Wonderland Opens for 20th Anniversary Season at York Designer Outlet
Final Leeds Brown Bin Collections Before Winter ‘Hi-Bin-ation’
Detectives Appeal After Man Seriously Injured in Dewsbury Disorder
Millions of Tenants Protected Under New Awaab’s Law Reforms
Bradford Expands ‘New York’ Style Housing First Approach to Tackle Homelessness
Kensington Palace Marks 150th Birthday of Punjabi Princess and Suffragette Sophia Duleep Singh
SENDIVERSE Festival Unites Bradford Through Creativity and Inclusion
Appeal After Man Seriously Injured in Burnley Collision
Remix Saturdays
Bhangra Nights
Legal Show
Alim OnAir