According to a BBC report[new BBC NI link]
Reports are coming in of an explosion in the Castlederg area of County Tyrone. There are no further details at present.
I’ll update when details emerge. There was an earlier hoax alert in south Belfast. More from the BBC report – “It is thought that one person may have been injured. It is also believed a vehicle is being examined in relation to the incident.” Update from the BBC report, “It is understood that an off-duty police officer has been injured in the under-car booby trap explosion. It is believed he suffered serious leg injuries, but they are not thought to be life-threatening.”