Police chiefs issued a public warning about a letter bomb campaign to workers across the country today after it emerged that seven explosive devices have been posted in the last three weeks.

OIL fell below $73 a barrel yesterday as refiners in the United States cranked up gasoline output, easing supply crunch worries ahead of the peak demand summer driving season.

OIL fell below $73 a barrel yesterday as refiners in the United States cranked up gasoline output, easing supply crunch worries ahead of the peak demand summer driving season.