Patrick Stewart, legendary 'Star Trek' and 'X-Men' actor, dies at 86

Sir Patrick Stewart, the legendary British actor best known for portraying Captain Jean-Luc Picard in "Star Trek" and Professor Charles Xavier in the "X-Men" franchise, has died at 86, according to a statement shared on his Instagram account.

Stewart died Wednesday at his Los Angeles home, surrounded by family and friends and cared for by his wife, Sunny, following a battle with Alzheimer's disease and Lewy body dementia, the statement said.

This is a developing story; check back later for updates.