Police in Kazakhstan's capital have detained two foreign nationals after officers found a suitcase containing banned substances weighing more than one kilogram in their car, the website infohub.kz reports.

According to the press service of the Astana Police Department, the detainees, aged 21 and 37, are suspected of storing and distributing banned substances.

During a search of the Changan car the two were traveling in, officers found a suitcase in the passenger compartment. It contained three packages of a narcotic substance, as well as packaged capsules holding a liquid-consistency substance that is also a drug.

In addition, a bag belonging to one of the detainees was found to contain substances of a similar nature.

All the items seized weighed more than one kilogram in total. A criminal case has been opened over the incident. Both detainees have been placed in a temporary detention facility.

Police reminded that the storage, transportation and distribution of narcotic substances carry criminal liability. Work to identify cases of illegal drug trafficking and prevent the spread of drugs in the capital will continue.