A gang of masked protesters attacked the Greek riot police headquarters Tuesday amid reports that rioters are using lasers to combat police officers.
Authorities trying to contain the gangs of rioters were hit with blinding flashes of green light as the violence in Greece entered a second week, the U.K.'s Daily Mail newspaper reported.
The riot police headquarters in Athens was damaged, but no officers were injured.
Police say a group of 30 youths threw petrol bombs and stones at the building, damaging police vehicles parked outside. The central Athens building is also used by traffic police.
In other parts of Athens Tuesday, schoolchildren are blocking streets to protest against the police killing of a 15-year-old boy on Dec. 6, which sparked a week of the country's worst riots in decades.
Dozens of teenagers gathered outside the capital's main court complex and a maximum security prison, stopping traffic but causing no other disturbance. Similar protests are planned in other parts of town later in the day.
Violence has wracked Greece every day since the death of Alexandros Grigoropoulos. The riots in cities throughout the country have left at least 70 people injured. Hundreds of stores have been smashed and looted, and more than 200 people have been arrested.
The Associated Press contributed to this report.