KINSHASA: Fighting flared again on the border of Rwanda and the Democratic Republic of Congo early on Thursday, according to Congolese sources, the second day of skirmishes between two neighbors locked in a decades-long dispute. Rwandan and Congolese troops traded heavy weapons fire around 6 a.m. Manila time, said a witness and a Congolese officer. “There were heavy arms fire explosions, rockets,” a resident told Agense France-Presse on condition of anonymity. A senior Congolese military officer said that Rwandan troops “attacked our positions.” On Wednesday the two sides exchanged gunfire, with each blaming the other for the outbreak of violence. The Congolese army said the fighting started after the abduction of one of its soldiers by Rwandan troops who had crossed the border into the restive North Kivu region.