United Nations, 12 April 2000 (RFE/RL) - The European Union has introduced a resolution at the UN Commission on Human Rights urging Russia to investigate reports of massive human rights violations by its troops in Chechnya. Portugal, which holds the EU presidency, submitted the draft resolution to the commission in Geneva late yesterday following a debate focusing on Chechnya. Commission spokesman Jose Diaz told our correspondent that the resolution was sent in just ahead of today's deadline for submitting all resolutions on rights violations. The spokesman said the commission would vote on the draft on April 18. Such a resolution would be non-binding but a vote in favor could result in the commission sending a special investigator to Chechnya. A Russian envoy, Vladimir Kalamanov, told the commission the allegations are based on "rumors and disinformation." Meanwhile, Russia's military press office said yesterday that Chechen fighters are staging increasingly frequent attacks on Russian positions in southern Chechnya. It also said that the Chechen fighters are regrouping and fortifying their bases in the mountains.