A violent storm in southern Italy has caused a viaduct to partially collapse, according to Italian state police.

A long section of the Morandi Bridge, which lies to the west of the port city of Genoa, collapsed around noon local time on Tuesday, police said, later posting a video of the moment the bridge was destroyed.

The fire department there tweeted that a large number of firefighters were at the scene.

Italy’s Infrastructure Minister Danilo Toninelli tweeted, “I am following with the utmost apprehension what has happened to #Genoa and which looms as an immense tragedy. We are in close contact with Autostrade (company managing Italian highways) and we are going to the the site with the deputy Minister Rixi. My total closeness at this time to the city.”

Unnamed sources told the Italian news agency ANSA that several crushed vehicles are under the rubble with dead people inside, without providing a specific number of casualties. ANSA reports around 10 vehicles are involved after a section of the Morandi Bridge, which lies to the west of the port city of Genoa, collapsed.

Police sources said that at least 10 people were killed, BBC reported.

The firefighters are currently working on extracting the survivors from the crushed vehicles under the rubble. At least two survivors were found so far, and transported to the San Martino hospital.

The viaduct, which crosses several roads, railway tracks and the Polcevera river, links central Genoa with Genoa airport and towns along the coast to the west of the city.

The Morandi Bridge, also known as the Polcevera Viaduct, was completed in 1968.