Latin American countries are expected to announce measures to exert further pressure on Venezuelan President Nicolas Maduro on Monday after he blocked the entry of hundreds of tons of humanitarian aid to his economically devastated country over the weekend.

The Lima Group of nations is likely to reiterate its opposition to the use of force at the meeting in Bogota, attendees and diplomatic sources said.

At least three people were killed and almost 300 wounded during protests and clashes on Saturday as U.S.-backed aid convoys attempted to enter Venezuela to deliver food and medicine.