RENOUS, N.B. — A package of drugs that included a marijuana concentrate known as shatter has been seized at the federal Atlantic Institution prison in New Brunswick.

A news release from the jail says the contraband seized included just over 27 grams of the potent form of cannabis, which sometimes looks like a sheet of maple syrup or thin toffee on wax paper.

The Correctional Service of Canada says it has been heightening its measures to stop contraband from entering the high-security jail.

It says the tools include ion scanners and drug-detector dogs to search buildings, personal property, inmates and visitors.

There were no details provided on when the seizure occurred or how the drug was detected.

Evidence regarding the seizure at the prison in Renous has been handed over for further investigation by RCMP in the area.