As they investigate Halloween night burglaries and attempted break-ins, Rumson police are putting residents on alert and offering cautionary advice.

Homes on Buttonwood and Conover lanes were burglarized; and signs of attempted forced entry to residences on Navesink and Bellevue avenues were reported, according to a release.

At the homes on Navesink and Bellevue, glass doors were reported broken with a rock, police said. No entry was obtained in either of those instances.

The perpetrators are still at large.

In the meantime, “we ask that residents utilize their alarms and keep the outside of their homes well lit,” the release said. “Notify the dispatch desk at 732-842-0500 or dial 911 in an emergency to report suspicious persons or vehicles 24 hours a day.”