UNITED NATIONS, April 7 (Reuters) - The United Nations General Assembly will vote on Thursday on a U.S. push to suspend Russia from the U.N. Human Rights Council over reports of "gross and systematic violations and abuses of human rights" by invading Russian troops in Ukraine.

A two-thirds majority of voting members - abstentions do not count - can suspend a country from the 47-member council. Libya was suspended in 2011 because of violence against protesters by forces loyal to then-leader Muammar Gaddafi.

Western diplomats are confident they have enough support among the 193-member General Assembly to adopt a resolution to suspend Moscow. The draft text expresses "grave concern at the ongoing human rights and humanitarian crisis in Ukraine," particularly at reports of rights abuses by Russia.

Explaining the move, announced on Monday, U.S. Ambassador to the United Nations Linda Thomas-Greenfield told Reuters: "It is important to say (to Russia) 'we're not going to allow you to continue to act with such impunity and pretend that you respect human rights'."

Russia has warned countries that a yes vote or abstention will be viewed as an "unfriendly gesture" with consequences for bilateral ties, according to a note seen by Reuters.