Yemen ? An international anti-piracy force thwarted the attempted takeover of a Chinese cargo ship off the Somali coast on Wednesday, sending in attack helicopters that fired on the bandits and forced them to abandon the ship they had boarded.

In another blow to the region’s thriving piracy trade, the Indian navy handed over 23 pirates it caught at sea to authorities in Yemen.

In Wednesday’s assault, nine pirates armed with guns overtook the Chinese ship with speedboats and boarded the vessel, said Noel Choong, who heads the International Maritime Bureau’s piracy reporting center in Kuala Lumpur, Malaysia.

He said the 30-member crew sent a distress message to the bureau as it saw the pirates approaching, then barricaded themselves inside their living quarters. Choong said the bureau quickly alerted the international naval force, which dispatched two helicopters and a warship.

“Two helicopters arrived at the scene first and helped deter the hijacking. They fired at the pirates, forcing them to flee the ship,” he said. There were no injuries during the five-hour ordeal.