At least three people died in violence that followed weekend municipal elections swept by the governing Sandinista party, Nicaraguan police said.
Ariel Reyes, 23, was stabbed in the neck and died while celebrating the Sandinista victory in a town in Nueva Segovia province bordering on Honduras, police spokesman Fernando Borge told a press conference.
The other fatalities were Juan Lopez, 40, who was gunned down, and 56-year-old beating victim Vidal Obando.
Both men were killed in the Ciudad Dario municipality in northern Nicaragua, where 2 other people were injured, Borge said.
The spokesman said that in the municipality of Yali, in the northern province of Jinotega, a policeman was shot and wounded, while another was hit by a rock thrown in his face.
In Altagracia, on the idyllic Pacific isle of Ometepe, four police officers were attacked with stones, he said.
Meanwhile in La Paz Centro, 56 kilometers (35 miles) northwest of Managua, a clash between Sandinistas and members of the opposition ended with 27 under arrest, and with the old train station and local headquarters of the Independent Liberal Party totally destroyed, Borge said.
Police have sent hundreds of anti-riot agents to those municipalities to ward off even worse acts of violence.
The ruling Sandinistas won 134 of the 153 disputed city councils in Sunday's voting, including Managua, according to the latest official figures. EFE