West Ham United chairman David Sullivan has confirmed that the club have tabled bids for "three or four" strikers.
The Premier League outfit are determined to strengthen their strikeforce after Andy Carroll was hit with a four-month layoff following damage to his ankle ligaments in pre-season.
"We've got offers in for three or four strikers - one in England, three abroad, and we just hope to land one of them," Sullivan told the club's official website. "We do need to sign another player.
"We have worked 24/7 all summer and we still want to get at least one more striker in."
The Hammers have secured the signatures of Enner Valencia, Mauro Zarate, Aaron Cresswell and Diego Poyet so far this summer.
