Four major banks have reached separate agreements to settle a US civil lawsuit over alleged foreign-exchange rigging in deals totaling nearly $1 billion, sources close to the situation said Wednesday.

The agreements by Goldman Sachs, French bank BNP Paribas and British banks Barclays and HSBC are preliminary and could change, the sources said, confirming a report on the settlements in The Wall Street Journal that cited people familiar with the matter.

The four banks' pending agreements would settle the civil lawsuit filed by Scott & Scott and Hausfeld that alleges their traders manipulated the forex market to boost the banks' profits.