The American television network NBC has dismissed Matt Lauer, a star of its morning news program, after someone accused him of sexual abuse. Lauer is the latest well-known American man to be brought down by abuse accusations in recent weeks. Lauer, who is 59, worked on NBC’s Today show for 20 years. He became the second morning show host in recent days to lose his job over reports of sexual wrongdoing. Last week, CBS News dismissed morning host Charlie Rose after several women who worked for him complained about his behavior. NBC News chairman Andy Lack said in a statement that the network received on Monday a detailed complaint from a colleague about inappropriate sexual behavior in the workplace by Matt Lauer. Lack added that the company had reason to believe that more accusations against Lauer may follow.