A bombing damaged a section of Colombia’s Trasandino pipeline, state-run company Ecopetrol said on Saturday, and the company was investigating a crude spillage from the Cano Limon pipeline to determine if it was also caused by an attack.

The attack on the Trasandino took place late on Friday in Barbacoas municipality in southwestern Narino province, Ecopetrol said in a statement.

The company was assessing the extent of the damage, it said. Photos posted by Ecopetrol on Twitter showed oil-slicked grass and a puddle of crude next to the damaged pipeline.

Read more: Reuters