The American Society for the Prevention of Cruelty to Animals is boosting its reward to $22,000 for information leading to an arrest and conviction in the case of a malnourished puppy found zipped inside a suitcase.

The abandoned dog is a male brown pit bull about one year old. The ASPCA has been treating the doge for malnourishment.

A passerby at the Melrose Housing Development at 700 Morris Ave. in the Bronx alerted police officers on patrol after discovering the dog in the suitcase on Jan 22.

Anyone with information is asked to contact Crime Stoppers at 800-577-TIPS.