Motorola Inc posted on Thursday a wider quarterly loss as sales missed Wall Street Estimates, but it forecast a narrower loss for the second quarter and said it plans further cost cuts.

The company, which has struggled in recent years to stem sharp cell phone market share losses, posted a loss of $231 million, or 10 cents per share compared with a loss of $194 million, or 9 cents per share in the same quarter a year ago.

It had forecast a first quarter loss in the range of 10 cents to 12 cents per share.

Revenue fell to $5.37 billion from $7.45 billion, The average Wall Street estimate was $5.55 billion, according to Reuters Estimates.

Motorola, whose biggest competitors are Nokia and Samsung Electronics <005930.KS>, sold 14.7 million phones in the quarter, down from 27.4 million a year ago.

The company forecast a second quarter loss per share from continuing operations in a range of 3 cents to 5 cents.

(Reporting by Sinead Carew; Editing by Derek Caney)