 An investigation into the incident was started amidst speculation regarding the ship's actual cargo, and there were allegations of a cover-up by Russian authorities.The "Arctic Sea" was towed into harbor in the Maltese capital of Valletta on 29 October 2009.The ship's alleged hijacking and subsequent events have remained difficult to understand, as no credible explanation has been presented of its disappearance and Russian authorities' conduct during and after the ship's capture.