A 27-year-old Lasalle Avenue man wanted on assault, burglary and sex crime counts was arrested in an ally in the 1300 block of Lasalle about 8 p.m. tonight.

Donald Leroy Smith, also known by a street name of “D Block” was arrested after a brief foot chase. Niagara Falls Police Detective Lt. Michael Trane said Smith was wanted on 17 warrants.

Arrested by Niagara Falls Police Officers Troy Erp and Michael Badaloto, with help from U.S. marshals and sheriff’s deputies, Smith is being held on two counts of second degree assault, two counts of first degree burglary, a single count of criminal sexual act, and reckless endangerment for allegedly firing a handgun recently at an acquaintance.

Trane said Smith was considered armed and dangerous. He said Smith also faces charges for resisting arrest and bail jumping.