By RIA Novosti,
Pittsburgh : At least 70 protesters were detained on the first day of the G20 summit here in Pennsylvania Friday, police said.
Those arrested were fined for public order offences and later released, a police spokesman said.
Earlier in the day, protesters clashed with police, throwing rocks and garbage bins at officers, who retaliated with tear gas.
The Pittsburgh G-20 Resistance Project said six protest marches would be held during the two-day summit.