Slovenia has temporarily suspended the use of Johnson & Johnson's (NYSE:JNJ) COVID-19 vaccines after the death of a young woman, Reuters news agency reported on Wednesday, citing the STA national news agency.

STA reported that the patient had blood clots and bleeding in the brain at the same time and intensive care was not successful.

Health minister Janez Poklukar said he was not familiar with the details of the case.

"I can't make comments, but the conditions have been met for clarifying all the circumstances of what happened," he said.

The J&J Janssen COVID-19 vaccine is one of the several vaccines Slovenia is using in its vaccination programme.