Why is Wilshire Blvd. Closed in K-Town?

Since this morning, one block of Wilshire Boulevard has been closed to traffic. Police were alerted at 8 a.m. to a suspicious bag left on the 3600 block of Wilshire, prompting the usual response by the LAPD--close the area down, send out the bomb squad. Officer Rosario Herrera said there is no word when the street will be reopened.