Police say a domestic incident where serious threats were issued has now been resolved.
Officers closed Douglas Head Road at around 7pm between South Quay and Fort Anne Road.
The incident, on Taubmann Terrace, saw a huge police presence including armed officers.
They spent some hours negotiating with a man inside a property.
The incident has now been resolved and one man arrested.
Community information sessions planned for offshore wind farm proposal
Ørsted to host events as examining panel compiles report
DoI: 'No outstanding issues between airport and Loganair'
But minister says he hasn't been able to speak to 'key people' at airline
Treasury minister hopes to eliminate structural deficit by end of this administration
Michael Crowe responds to HoK question
Opul House to close next month following recent inspections
Company says closure is due to significant cost of remedial works