British Prime Minister David Cameron is set to deliver his hotly anticipated speech about his plans for Britain's membership in the European Union this week, Foreign Secretary William Hague said on Sunday.

After months of speculation, Cameron had been scheduled to deliver the speech on Friday in the Netherlands, but it was postponed because of the hostage crisis involving Britons at a gas plant in Algeria.

"It will happen in the coming week. We will make an announcement about exactly when and where tomorrow," Hague told the BBC.