WASHINGTON (AP) _ The State Department expressed deep regret Friday over a terrorist bombing in Colombia but said there is no evidence that the incident was linked to the pending extradition of three accused drug traffickers awaiting trial in the United States.

A car bomb Thursday killed eight people in Bogota and injured 45 as Colombian authorities were making preparations to extradite the three.

``It is not possible at this time to have information that these acts are related to the extradition,'' State Department spokesman James Rubin said. ``We certainly call for an immediate end to violence that targets innocent civilians.''