The police say a home in the Sant Ioan city center area was shot last night, but no-one was injured.
The Royal Army of the Overseas arrived in full force, with four different units responding to the call of shocks being fired. No better description of the location of the house was released.
Shortly after arriving, the police said they were able to confirm "many shots had been fired."
The RNC's major crime unit is investigating.
"It is believed that this is a targeted action and members of the public are not at risk," read an overnight report issued by the police.