Twenty Indian soldiers were killed in a "violent face-off" with Chinese troops at Galwan Valley in Ladakh, the army said on Tuesday, in the most serious escalation between the two countries along the border in five decades. News agency ANI claimed that sources had confirmed 43 Chinese soldiers have been killed or seriously injured because of intercepts, though the army's statement did not refer to this. A statement on Tuesday confirmed the death of a Colonel and two jawans and spoke of "casualties on both sides". India blamed the clashes on "an attempt by the Chinese side to unilaterally change the status quo there", rebutting China's claims that Indian soldiers crossed the border.