THE BRONX - According to NYPD crime statistics, New York City's parks saw an increase in crime during this spring.

NYPD data from April through June shows a 31-crime increase in parks across the city compared to the same period in 2012.

Police are attributing the rise to the theft of personal objects such as iPhones, iPads and wallets containing credit cards.

There were nine robberies and five grand larcenies last quarter in the Bronx. Crotona Park was the site of the most offenses, with six robberies and a rape.

City Council Member Peter Vallone says city parks need more enforcement officers to cut down on the increase in quality-of-life crimes.

The NYPD says crimes committed in parks are consistently low and account for a very small percentage of crime in the city.