LANSDOWNE STATION — RCMP officers investigating the disappearance of two Nova Scotia children say that some of the people interviewed by police for the case have taken lie detector tests.

Four-year-old Jack Sullivan and six-year-old Lilly Sullivan disappeared on May 2 from their residence in Lansdowne Station, N.S., about 60 kilometres east of Truro. The case has gripped the province, with hundreds of trained volunteers combing through the densely wooded area surrounding the family home. Search and rescue teams have been assisted by helicopters, drones and thermal imaging devices.

In a virtual news conference on Wednesday, the RCMP would not discuss results of the lie detector tests, known as polygraphs, or say how many of the 54 people interviewed by police had sat for one. Polygraphs m

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