Hanoi - Customs officials in Vietnam's northern province of Hai Phong seized ivory tusks weighing more than 2 tons concealed inside a container imported from Malaysia, authorities said on Wednesday.

“We discovered suspicious signs about the container,” said Nguyen Kien Giang, director of division number 3 of Hai Phong Customs. “We decided to scan and open it and discovered the elephant tusks hidden inside packages of sea shells.”

Each of the tusks, which were found on Friday, were cut into three or four pieces, he said. The container was bound for China.

The biggest ivory seizure to date in Vietnam was in March 2009 when customs agents in Hai Phong found more than 6 tons in a container shipped from Tanzania.