Border officials in Halifax say they've seized approximately four kilograms of ketamine, often used as a date rape drug, dissolved in containers of liquid found in a shipment from India.

The Canada Border Services Agency said the containers were found on Feb. 11 at the Port of Halifax when officials were searching a shipment containing a variety of natural health products.

Ketamine bottles

This bottle, contained dissolved ketamine, was seized on Feb. 11, 2013 at the Port of Halifax. (Courtesy: Canada Border Services Agency)

Field tests and subsequent laboratory tests confirmed the presence of ketamine, said the Canada Border Services Agency.

Ketamine is an odourless and tasteless drug with hallucinogenic properties that can be in a liquid, powder or crystal form. People who are given the drug can become unresponsive and unable to resist a sexual assault.

It is illegal to import, possess or sell the drug under the Controlled Drugs and Substances Act.

"Ketamine is a dangerous street drug with great potential to cause harm in our communities," Don Collins, acting director of the Canada Border Services Agency Atlantic region, said in a statement.

This is the third ketamine seizure at the Port of Halifax. In 2005, border officials said they found 500 kilograms of ketamine and another 188 kilograms of ketamine crystals were found hidden in bags of rice in September 2012.