The United Nations has raised its estimate of the death toll in Syria’s more than two-year civil war to nearly 93,000, up from 59,000 in January. In a statement today, the U.N.’s human rights office says an average of 5,000 people have been killed monthly since last July. The U.N. warns the actual number of killings is “potentially much higher,” as the “constant flow of killings continues at shockingly high levels.”