HAVANA, May 21 (Xinhua) -- Cuba denied on Tuesday any link to the illegal drugs which were hidden in a container from the island country and intercepted by Panamanian authorities.

It was found after investigations in Cuba and Panama that the container seal was changed after placing the drugs, the General Customs Office of the Republic of Cuba said in a statement.

Cuba also reaffirmed its policy of zero tolerance towards drug trafficking in the statement, pledging to strengthen cooperation with agencies, countries and services to fight this scourge.