JAKARTA: Dozens of passengers were rescued from the waters of Surabaya's Tanjung Perak port after a docked ferry sank on Monday (Nov 16).

The 140-tonne Wihan Sejahtera, which was about to set sail for Labuhan Bajo in East Nusa Tenggara, began taking in water on Monday morning before sinking completely at 9.30 am, the Jakarta Globe reported, quoting the port authorities.

Dramatic video footage showed passengers clinging on to the side of the ferry, as rescuers in boats approached the ferry.

More than 100 passengers were on the ferry. There were also dozens of private vehicles and trucks on board.

Antara news agency reported that 25 passengers were rushed to a local hospital while 20 more were treated by the port authorities for minor injuries.

There were no casualties, according to reports.