(LONDON) -- Three coded bomb threat warnings by dissident Irish terrorists have been called in to London police as of Monday, ABC News has learned.
The warnings come ahead of President Obama's scheduled visit to London next week and the Queen of England's trip to Ireland on Tuesday. According to sources, none of the threats mentioned Obama nor the Queen. One of them did, however, mention a location where no bomb was found.
The phoned-in threats are the latest in an aggressive campaign by Irish terrorists that has so far confined itself largely to attacks on police and security services in areas inside the U.K. that include Belfast, Omagh, and Londonderry. An attack in London is an aspiration of the terrorists, British law enforcement and intelligence sources have told ABC News.
Recent press in Ireland has suggested that the dissidents are seeking to acquire weapons such as rocket launchers. But as ABC News has reported, the groups have already constructed sophisticated mortars capable of flinging nearly 40 pounds of explosives more than 300 yards.
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