First more than a thousand anti-Prop 8 protesters gathered at the Mormon temple in Westwood. Now, after employees reported receiving an envelope filled with white powder, the temple has been closed. Details from ABC.com:

The Los Angeles Mormon Temple in Westwood, which was the target of recent protests by opponents of Proposition 8, has been closed because temple employees received an envelope filled with an unidentified white powdery substance, according to a spokesman for the Church of Jesus Christ of Latter-day Saints.

Spokesman Ronald Smith says a similar envelope was delivered this afternoon to the Salt Lake City Mormon temple.

The FBI and a Hazmat unit are on the scene.

--Veronique de Turenne