(CNN) Nearly 40 K-9 police units rolled into a Wisconsin suburb the other morning, but they weren't there to arrest anyone. The dogs and their police officers showed up Saturday to visit Emma Mertens , a 7-year-old girl who has been diagnosed with a rare cancer called Diffuse Intrinsic Pontine Glioma (DIPG). But nearly 40 local police departments decided to go one step further and bring dogs for Emma to see in person. "It looked like a parade of police cars and it was all K-9 units coming down the road," said Geoff Mertens, Emma's dad. Although Mertens was warned of the surprise beforehand, he was only expecting about 10 dogs to arrive.

Source: CNN March 11, 2019 17:48 UTC