July 18 (Reuters) - Shoppers spent about $14.2 billion

online across retailers in the United States during the 48-hour

Amazon Prime Day event, according to a report from Adobe

Analytics on Thursday.

The Amazon ( AMZN ) sales event in July has also got retailers such

as Walmart ( WMT ) and Target ( TGT ) launching deals to attract

customers looking for steep discounts.

Adobe Analytics, which studies e-commerce transaction data,

had forecast that consumers could spend $14 billion online

across retailers over the two days, up 10.5% from a year

earlier.