WASHINGTON, (Reuters) - U.S. consumer prices fell in March for the first time in 13 months as declining costs for gasoline and mobile phone services offset rising rents and food prices.

A Chevron gas station is seen in Cardiff, California January 25, 2016. REUTERS/Mike Blake

The Labor Department said on Friday its Consumer Price Index dropped 0.3 percent, the first decline since February

2016, after nudging up 0.1 percent in February.

That lowered the year-on-year increase in the CPI to 2.4 percent from 2.7 percent in February. Economists polled by

Reuters had forecast the CPI unchanged last month and slowing to a 2.6 percent increase from a year ago.

The so-called core CPI, which strips out food and energy costs, fell 0.1 percent last month, the first and largest

decrease since January 2010, after rising 0.2 percent in February. As a result, the year-on-year increase slowed to 2.0 percent.

That was the smallest advance since November 2015 and followed a 2.2 percent increase in February. The Federal Reserve

has a 2 percent inflation target and tracks an inflation measure which is currently at 1.8 percent.

Rents increased 0.3 percent last month after a similar gain in February. Owners’ equivalent rent of primary residence rose 0.2 percent after climbing 0.3 percent in February.

Last month, gasoline prices fell 6.2 percent, the biggest drop since February 2016, after falling 3.0 percent in February.

The cost of wireless telephone services dropped 7.0 percent, the biggest drop on record.

Food prices rose 0.3 percent. The cost of food consumed at home increased 0.5 percent, the biggest gain since May 2014.

Medical care increased 0.1 percent last month, as the cost of doctor visits fell 0.3 percent. Prices for hospital services rose 0.4 percent and the cost of prescription medicine was unchanged.

Motor vehicle prices dropped 0.3 percent after falling 0.2 percent in February. Apparel prices declined 0.7 percent last

month after rising 0.6 percent in February.