stolen Bianchi Vigorelli

I last used my bike on Thursday evening and parked it in my backyard behind our gate. I woke up on Sunday morning to find it missing. It had a U-lock on the left handlebar and a blue helmet clipped on to it. Description: Small road bike with drop bars, a teal-colored brake cable on the right side and a rear rack that is black with a silver strip down the middle of the top side. Bike and seat height fits a very short person (rider was 5'2). There is a sticker with the bike link registration number "61724" on the left of the head tube (the frame above the wheel).