US toymaker Mattel has seen its sales fall for a sixth consecutive quarter due to falling sales of its signature Barbie doll.

Mattel saw its sales drop by 2.5% in the three months to March, as the company saw global sales drop 14% in the same period and saw a net loss of $58.2 million (£39 million).

The iconic Barbie doll which is now 56 years old, has been in competition with tablets, a variety of electronic toys and the popularity of Disney’s Frozen.

In a statement, Christopher Sinclair who replaced chief executive of Mattel Bryan Stockton in January, said: "We're starting to see progress with our core brands like Barbie and Fisher-Price, and I am confident we are making the changes necessary to perform better in the future."

On a positive note for Mattel its New York-listed shares rose 6.5%.