The Metropolitan Police have reportedly surrounded St Gabriel's Church on the busy road after a man climbed on to the top of the bell tower.
Police have closed Blenheim Gardens and Stanley Gardens, both of which run off the road between Willesden and Cricklewood.
The church has been surrounded for "several hours" while the man was on the roof, with officers having arrived at the scene shortly after 1pm.
Brent Police tweeted a warning shortly after 4.30pm, telling residents and commuters to avoid the busy road as the incident was still ongoing.
You can follow the latest updates on this developing story on our live blog below.
A man has been arrested after “climbing onto the church’s roof armed with an axe"
He allegedly scaled the church’s bell tower before entering the building through its roof.
Man arrested on suspicion of aggravated burglary after allegedly "entering the church armed with an axe"
Metropolitan Police arrested a man on suspicion of aggravated burglary after he allegedly entered St Gabriel’s church armed with an axe this afternnon.
A Metropolitan Police spokesman said:
“We were called at 1.08pm on Friday, August 3, to reports of a man on the roof of a church on Walm Lane, NW2.
“The man entered the church via the roof. He was armed with an axe.
“Specialist officers attended the scene.
“The male has been arrested for aggravated burglary and taken into custody.”
Walm Lane traffic
While road closures around St Gabriel’s church have been lifted there is still heavy traffic at the top of Walm Lane after reports of a man on the roof of the church.
Brent police has tweeted that its road closures have been lifted.
They also thanked the public for their patience.
St Gabriel’s Church is in Walm Lane, between Willesden Green and Cricklewood stations.
Where is the incident?
The man has reportedly climbed the bell tower at St Gabriel’s Church.
Public warned to avoid the area
Brent MPS tweeted shortly after 4.30pm warning commuters and residents to avoid the area.
They described the incident as ongoing.
What are police doing
A spokesman for Metropolitan Police confirmed they were called to the scene at around 1.08pm after a man climbed on to the bell tower of the church.
What is happening in Willesden?
Walm Lane, Stanley Gardens and Blenheim Gardens are closed and multiple police cars are at the scene outside St Gabriel’s Church in Willesden Green.