Srilanka, Aug. 10 -- The death toll after a strong earthquake that rocked western Colombia on Monday has risen to at least 20, authorities said.



In the town of Pereira, 18 people were killed and others were trapped in buildings that collapsed, Mayor Mauricio Salazar told Caracol Radio.



In Manizales, two people were killed, Mayor Jorge Eduardo Rojas said in an interview with Blu Radio.



Alejandro Eder, mayor of Cali, one of Colombia's largest cities, said preliminary reports showed at least 20 structures had collapsed there, with people trapped. He said Cali had requested disaster teams from Bogota and Medellin to aid in rescue efforts.



The quake's epicenter was near San Jose del Palmar, in Choco, a sparsely populated provi...