NYPD investigates increase in the number of sex attacks in B'klyn

Top cop Ray Kelly said Tuesday cops remain "concerned" about the growing number of sexual attacks against women in Brooklyn.

"The Special Victims squad is very much involved in an all-out effort to arrest this individual or individuals," Kelly told reporters.

Police, however, don't believe the 18-year-old woman who was sexually assaulted just before 8 p.m. Monday at 36th Street and Fifth Avenue was attacked by the same serial groper. Reports said her attacker was in his 30s, not in his 20s, as the groper has been previously described. The suspect grabbed her buttocks and fled.

Police said there have been about a dozen such attacks in Brooklyn, including one rape, since March.