Residents living in the Crumlin area are being advised by police to keep their homes secure.
They are also advised to be vigilant and alert to any suspicious activity in the area.
Police in Antrim attended a call in the early hours of this morning relating to suspicious people.
Police advise homeowners to keep their valuables secure, and to look after vulnerable neighbours.
Police can be contacted on both 999 and 101 (non-emergency).