BAGHDAD (REUTERS) - US-backed Iraqi forces on Monday (March 6) captured Mosul's Al-Hurriya bridge, which leads to the Islamic State in Iraq and Syria (ISIS)-held old city centre from the south, a military media officer told Reuters.

The Al-Hurriya bridge is the second to be secured by the Iraqi forces in the city, after securing one located further south, in the offensive that started on the western part of Mosul on Feb 19.

"We control the western end of the bridge," said a senior media officer with Rapid Response, the elite unit of the interior ministry leading the charge through the districts alongside the Tigris river.

All of Mosul's five bridges over the Tigris have been destroyed but their capture and repair would help the offensive against the militants, who have controlled the northern Iraqi city since 2014.

Iraqi forces captured the eastern side of Mosul in January after 100 days of fighting and launched their attack on the districts that lie west of the Tigris on Feb 19.

Defeating ISIS in Mosul would crush the Iraqi wing of the caliphate declared by the group's leader, Abu Bakr al-Baghdadi, in 2014, over parts of Iraq and Syria.

Baghdadi proclaimed the caliphate from Mosul's grand Nuri mosque in the old city centre which is still under his followers' control.

The Iraqi forces are advancing toward the old city centre form the south and the southwest.