VANCOUVER - A Canadian man who admitted to having sex with young girls in Columbia and Cambodia has been sentenced to 11 years in prison.

A B.C. Supreme Court judge said Kenneth Klassen committed "serious" and "opportunistic" offences in delivering his sentence on 14 counts of sexual interference and one count of importing child pornography.

Justice Austin Cullen rejected the defence argument that Klassen was just a "customer" in a transaction with sex-trade workers, saying the girls were very young and vulnerable.

The judge also noted the crimes may have never surfaced if police hadn't discovered a package Klassen mailed himself of videos showing him having sex with girls the Crown says were as young as eight.

Before his sentencing, the 59-year-old Burnaby, B.C., man stood up and briefly apologized, telling the judge he was "sorry for what I have done with all my heart."

The Crown says the sentence imposed by the judge is the highest so far for charges under Canada's so-called sex tourism law.