An exhaustive search continued for a fourth day on Monday for two young children believed to have wandered away from their home in rural northeastern Nova Scotia.

Six-year-old Lily Sullivan and four-year-old Jack Sullivan were last seen around 10 a.m. Friday in the community of Lansdowne Station.

In a short update on Monday, RCMP Cpl. Carlie McCann said that over the last three days ground teams have “meticulously searched” several kilometres in the area where the children were last seen.

“Searchers are diligently keeping track of which specific sections of the ground have been covered and are applying their specialized skills to allow the searchers on scene to stay safe,” McCann said.