The armed man seized the BRED bank branch located on Boulevard de Strasbourg shortly after 5pm local time.
He is understood to have made several deamnds and police are in negotiations.
The France Blue website reported Several customers were inside the bank and were being held hostage.
Police have been mobilised and armed response officers have been called to the scene.
No casualties have been reported.
France 24 tweeted: “A hostage-taking is currently underway in a #Bred bank branch, Boulevard de Strasbourg in #Havre.
“An armed man broke into the bank around 5 pm and is holding 6 people hostage, the neighborhood is cordoned off.”
More to follow…
source: express.co.uk