BOGOTA, Colombia (AP) _ The ruling Liberal Party lost control of every major Colombian city in elections for governors, mayors and city councils.

In a blow to recently elected President Ernesto Samper, party incumbents were ousted Sunday in the capital Bogota, and in Cali, Medellin, Barranquilla and Pasto.

Antanas Mockus, a former president of the national university, was elected mayor of Bogota, despite running as an independent and spending virtually no money on his campaign.

Conservative political novice Sergio Naranjo was elected mayor in Medellin, Colombia's second city. He used to be president of the soccer team Atletico Nacional, a former national champion.

In Pasto, a city of 350,000 near the border with Ecuador, former guerrilla fighter turned left-wing politician Antonio Navarro Wolf beat a Liberal Party candidate to become mayor.

Navarro Wolf, whose M-19 guerrilla movement signed a peace treaty with the government, was a distant finisher in presidential elections earlier this year.

The Liberals fared better in regional governor races, winning 17 of 31 posts. The Conservative Party won 10 governorships and independents took the remaining four.

A number of candidates were assassinated or kidnapped by leftist guerrillas in recent weeks, forcing the government to cancel elections in 10 municipalities.