"The issue 5G communications should be international. Discussions on the aspects of cybersecurity and communications security are underway at the NATO level and in the European Union," he told Ziniu Radijas on Tuesday morning.
Following NATO allies' decision not to work with Huawei, it is important for Lithuania to address challenges involved in exchanging intelligence and ensuring the security of the allies' communications while they are in Lithuania, according to the minister.
"5G is a management system, not just a communication system, and if systems are incompatible, then we are going to have problems," he told the radio station.
Karoblis said possible options would be for Lithuania to choose other technologies for military and state communications or to work with an operator that is not using the Chinese giant's technology.
In his words, if all operators opted for Huawei, Lithuania would have to look for "alternative state communications".
The minister said decisions will be made "in the near future".
The United States has recently begun to push its European partners not to use Huawei's equipment.
Washington says Huawei equipment may help China spy on Western businesses, an allegation categorically denied by the Chinese company.