Authorities arrested a 24-year-old man last night in Rusholme, an inner-city area of Manchester, it said in a statement.
"He was arrested on suspicion of offences contrary to the terrorism act," police added.
Twenty-two people, including seven children, were killed in the attack at a concert by US singer Ariana Grande.
The new arrest follows the evacuation yesterday afternoon of an area in Rusholme after police identified a car they said "may be significant to the investigation".
Bomber Salman Abedi's father and brother are also in detention in Libya, where authorities say the two brothers were both part of the Islamic State group which claimed responsibility for the attack.
Ariana Grande returned to Manchester yesterday ahead of a charity concert to honor the victims of the attack.
The singer visited some of her injured fans still being treated at the Royal Manchester Children's Hospital.
"This means more to us than all the amazing things people have done," Peter Mann, whose daughter Jaden was injured in the attack, told the BBC after Grande's visit.
Performances at the 50,000 capacity stadium will kick off at 7.15pm (local time) and will be streamed online and broadcast by the BBC.
Tickets went on sale Thursday, selling out within six minutes, with website Ticketmaster reporting "incredible" demand.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
