Italian carrier Alitalia has confirmed chief executive Andrea Ragnetti has resigned from the role.

Chairman Roberto Colaninno will be the interim chief executive until the board appoints a replacement.

A statement from the Italian airline did not provide any reasons for the resignation.

However, Alitalia earlier reported a 2012 net loss of €280 million, compared with a net loss of €69 million in 2011.

The company said its 2012 Ebit loss was €119 million, compared with a loss of €6 million the year before.

Revenues for 2012 stood at €3.6 billion, up 3.3 per cent.

The carrier, which has been struggling in recent years, recently approved a convertible loan of up to €150 million to boost liquidity.