The Los Angeles district attorney’s office said Tuesday that there is not enough evidence at this time to pursue sexual-assault charges against So You Think You Can Dance choreographer Alex Da Silva (or Alex De Silva).

L.A. police need time to investigate further before charges can be filed, according to a district attorney spokeswoman, who also said that several new alleged victims have come forward but have yet to be interviewed.

Police can only hold someone for a specific amount of time before charging them. Da Silva was released yesterday.

Alex DeSilva, a well-known Salsa dancer, instructor, choreographer and TV performer has been arrested for multiple sexual assaults.

DeSilva, 41-years-old, was arrested at 3.40 p.m. local time by Van Nuys Sexual Assault Detectives in connection for four sexual assaults that occurred between May 2003 and March 28, 2009, the Los Angeles Police Department announced. The statement said:

"The four victims in this case were all students of DeSilva at the time of the assaults. The victims alleged that he lured them to his homes in North Hollywood and Van Nuys. He then used a ruse to get them into his bedroom where he raped them."

DeSilva won the World Salsa Dancing Championships in 2002 and 2007 and currently teaches at the Edge Performing Arts Center in Hollywood and the Mayan Club in downtown Los Angeles. DeSilva also choreographs and performs for the television show So You Think You Can Dance.

The Los Angeles Police Department released a booking photo as authorities believe there may be other victims. DeSilva’s bail has been set at $3.8 million dollars.

If you or someone you know was assaulted by DeSilva, call Van Nuys Sexual Assault Detectives at (818) 374-1926. During after-hours, calls may be directed to a 24-hour, toll-free number at 1-877-LAPD-24-7 (527-3247).