Paper company DS Smith says it is confident of meeting its revenue targets for the year, despite the political and economic uncertainties triggered by the UK's vote to leave the European Union.

In a trading statement released ahead of its annual general meeting, the firm said volume growth had remained solid since the start of May, helped by strong demand from European customers.

It also revealed that it was on track to complete its acquisition of Portuguese packaging business Gopaca.

DS Smith chief executive Miles Roberts said: "We are pleased with our start to the year and the momentum within the business, as we continue to grow organically and by acquisition.

"Notwithstanding the increased political and economic uncertainty within Europe, our outlook remains positive.

"Packaging has ever increasing relevance in a dynamic retail and consumer environment and our recent acquisitions, together with the customer and market opportunities for growth, give us confidence for the future."

DS Smith is one of Europe's biggest manufacturers of corrugated cardboard.

The London-based firm reported a 1% increase in pre-tax profit to £201m ($268m) in the year to 30 April.