Dutch retailer Ahold has reported better-than-expected fourth-quarter results and unveiled a new share buy-back programme.

The supermarket operator revealed a net income of €219m (Ā£160.2m), up from €215m (Ā£157.3m) during the same period last year.

Ahold chief executive Dick Boer said the retailer had seen ā€œimprovements in underlying sales trends, both in the United States and in the Netherlandsā€ in the fourth quarter.

But Boer warned that margins in the Netherlands will remain under pressure as Ahold continues to invest in its online store, Bol.com.

Fourth-quarter underlying margins in Ahold’s US business fell to 3.8% from 4% in the same period of 2013.

The retailer said it expected cash flow for the full year 2015 to remain at a similar level to the 2014 total of €1.055bn (Ā£771.8m).

Ahold said it would buy back €500m (Ā£365.78m) worth of shares in 2015 and proposed a 48 cent dividend for 2014, compared with 47 cents in 2013.

Analysts said this could be ā€œjust the beginning,ā€ and predicted that Ahold could return €2.5bn (Ā£1.82bn) to shareholders over the next three years.

Ahold revealed a similar €500m share buyback programme in February 2013 and increased it to €2bn (Ā£1.46bn) by June 2013.