(KUNA) -- Ten people were being questioned in Northern Ireland Tuesday after police foiled a suspected international gun smuggling plot by dissident Irish republican terrorists, police in the Province announced. One of those detained was also being questioned about the Omagh bombing in 1998 in which 29 people were slaughtered and hundreds more injured, police said.The arrests were made during raids across Northern Ireland by 200 police officers backed by soldiers. Eight premises were searched in parts of Counties Armagh and Fermanagh as police looked for possible arms dumps belonging to the renegade "Real IRA", which carried out the Omagh bombing. The investigation was carried out by the Police Service of Northern Ireland's Crime Operations branch and British security services.