Trade between Colombia and Venezuela stopped on Monday until further notice, as Venezuelan customs services at three border offices were suspended, according to freighters and witnesses, Reuters reported.

Bilateral diplomatic tensions worsened following an attack the Colombian Army launched against a camp of the rebel Colombian Revolutionary Armed Forces (FARC) in Ecuador, where the second leader of the guerrilla group was killed together with some other 15 troops. Caracas has strongly rejected the Colombian action.

In San Antonio del Táchira, Táchira state, southwest Venezuela, a photographer working for Reuters confirmed that the transit of people and public transportation vehicles was normal, but the passage of trucks through the border was halted.

The photographer said no customs officials or military officers were immediately available for comments.

Meanwhile, the head of the National Transportation Council, Arsenio Manzanero, told Reuters that the customs offices of Paraguachón, Zulia state, northwest Venezuela; and San Antonio and Ureña, both in Táchira state, southwest Venezuela, were not operating.

"Consequently, no truck has been allowed to cross" from Venezuela to Colombia or vice versa since Monday, Manzanero explained.

"We have information that customs operations in San Antonio del Táchira and Ureña head offices and in subordinate Paraguachón custom office have been suspended temporarily. Operations came to a halt yesterday (Monday), and that is the reason why the trucks cannot pass, because they lack customs clearance."