Some of the heaviest fighting in Syria is taking place in and around the town of Qusayr, near the Lebanese border.

Rebel are trying to stave off an offensive by regime forces who, backed by Lebanese Hezbollah, are trying to recapture the town.

Thousands of residents remain trapped in the city, but the Syrian government says humanitarian workers can only enter once the fighting is over.

Al Jazeera’s Nadim Baba reports.

Source: Al Jazeera