Alameda, CA (SportsNetwork.com) - The Oakland Raiders on Wednesday officially announced the signings of running back Roy Helu and linebacker Malcolm Smith.

No details were released by the club on either contract. On Tuesday, ESPN.com reported Helu and the Raiders have agreed upon a two-year, $4 million deal, while NFL.com reported Smith reached an undisclosed agreement with the team.

Helu, 26, rushed 40 times for 216 yards and a touchdown last season and added two receiving scores in 14 games.

The Nebraska product has totaled 255 carries for 1,132 yards and seven touchdowns in 48 games over four seasons with the Redskins.

Smith, the Super Bowl XLVIII MVP in 2013, registered 38 tackles and two forced fumbles in 14 games (five starts) with the Seahawks last season.

In four seasons with Seattle, the 25-year-old has racked up 130 tackles, two interceptions and four forced fumbles in 57 games.