CARACAS (Reuters) - Venezuela will ask the United Nations to help remove landmines in its territory that it says have been deployed by “irregular” armed groups near the Colombian border, President Nicolas Maduro said on Sunday. Maduro’s government on Thursday said two soldiers were killed by a land mine during military operations in the state of Apure, where clashes between soldiers and armed groups has led thousands of Venezuelans to flee across the border. The government will ask UN Secretary General Antonio Guterres for “immediate emergency assistance so that they can bring all of the techniques to deactivate the minefields that these irregular groups have left behind,” Maduro said in a televised broadcast. The UN did not immediately respond to a request for comment. Colombian President Ivan Duque has accused Venezuela of sheltering members of the National Liberation Army, or ELN, and dissidents of the FARC rebel group who reject a 2016 peace deal with the Colombian government. Maduro denies the claim. Rights groups from the two countries on Wednesday called on the UN to appoint a special envoy to address the humanitarian crisis on the border, which has been for years a center of drug trafficking and smuggling.