Police arrested an 89-year-old suspected of wounding five people in two separate gun attacks in Athens on Tuesday, the Greek citizens' protection ministry said.
A man opened fire with a shotgun at a branch of Greece’s EFKA social security agency, wounding an employee in the leg, police said.
The gunman then travelled by taxi to a court building, where he fired several shots inside, lightly wounding four female court clerks, according to police, court officials and the judiciary employees' union.
The gunman left the shotgun at the scene, along with letters addressed to newspapers, and fled on foot, media reported.
During the arrest, a second weapon was found, local media reported. Media identified the suspect as a garbage collector from the Athens area.
Police have not commented on a possible motive.
The man was arrested in a hotel in Patras, some 200 km from Athens.

Trump rejects Iran's response to US peace proposal as 'unacceptable'
Last two evacuation flights from hantavirus-hit ship to depart Monday afternoon
Six people found dead in boxcar in Texas, police say
Turkish Airlines plane evacuated due to tyre fire after landing in Kathmandu
Thailand's former PM Thaksin Shinawatra released from prison
Iran sends its response to US proposal aimed at ending the war
Ukraine, Russia ceasefire strained as both sides report weekend attacks
Evacuation flights leave Tenerife after cruise ship virus outbreak
