There are reports a British-registered tanker has been hijacked off the coast of Somalia. Reuters news agency said the Somali hijackers were demanding $1m for the release of the Russian crew. Britain's Foreign Office could not confirm the reports. Helicopter A spokesman said the a British frigate had dispatched a helicopter to find the ship, but nothing was seen. The tanker was hijacked about two weeks ago and its crew taken ashore to a location in Alula district on Somalia's north-eastern coast, the militiaman told Reuters. "The ship was registered in Britain," one of the militiamen told the agency. Dangerous...