An explosive-laden envelope was sent to a courthouse in Greeces northern port city of Thessaloniki, local media reported on Friday.

The package was detected by an X-ray device in the building after the recipient, the president of the appeal courts, deemed it suspicious and sent it for scanning, according to state-run news agency AMNA.

After the building was swiftly evacuated, a police bomb disposal team arrived to de-activate the explosive material before it caused damage or casualty, it added.

It also noted that an investigation is underway to determine the sender and route of the envelope. (Anadolu Agency: Text, Excluding Headline)