(Updates with police blaming rebels, details) BOGOTA, March 16 (Reuters) - A Colombian rebel bomb killed five people and wounded 10 on Friday in the port city of Buenaventura, where guerrillas and militia gangs compete for control over drug-smuggling routes, officials said. Buenaventura, the country's main port about 215 miles (350 km) from the capital, Bogota, has been a recent target for the Revolutionary Armed Forces of Colombia, or FARC. "This was terrorism carried out by the FARC ... an attack aimed at a passing police patrol," said National Police Commander Gen. Jorge Daniel Castro. Five people died in the blast and at least 10 were wounded, including two police officers and a young boy, Valle del Cauca province Gov. Angelino Garzon told local radio. Another small blast on Friday damaged buildings in Cajamarca in the western province of Tolima after an explosive was left on a public bus, but police reported no injuries. Violence from Colombia's guerrilla war has eased since President Alvaro Uribe began his U.S.-backed campaign more than four years ago to drive back the rebels and disarm illegal paramilitaries who once fought the FARC, Colombia's largest guerrilla group. While urban attacks are less common, the FARC is still fighting in rural areas where the presence of the state is weaker. After supplying Colombia with more than $4 billion in aid since 2000, the U.S. government wants Congress to approve another $3.9-billion assistance package. FARC, which began fighting for social justice in the 1960s but is now deeply involved in the country's huge cocaine-smuggling trade, has carried out several attacks in Buenaventura this year. Six people were killed in Buenaventura in January when rebels set off a bomb on a passing police patrol in what authorities said was retaliation for counter-narcotics operations in the area.
