The mobile phone company Motorola is to shut its plant in Cork with the loss of more than 300 jobs.

RTE News has learned that the plant at Blackrock in Cork City will be closed by the end of May, and that 330 of the 350 staff employed there will leave the company.

Workers at the plant will be told tomorrow.

The news from Motorola follows the announcements that 560 jobs are to be lost at Proctor and Gamble in Nenagh, Thomson Scientific in Limerick and Bourns electronics in Cork.

Motorola has been hurt globally by increased competition in the mobile phone market and a consequent drop in phone prices.

Motorola's profits for the fourth quarter last year fell by 50% and the company is cutting 5%, or 3,500, off its global workforce in the first six months of this year. That's why Motorola's plant in Cork is being shut down.

The company has spent the past month consulting its 350 workers in Cork, and the company's aim now is to help its employees find new jobs.