Zain Saudi, the third biggest telecoms operator in the kingdom, said on Wednesday it has signed infrastructure supply contracts worth SR4.5 billion ($1.2 billion) to develop and expand its network.

The deal parties are Huawei, Nokia, NEC Corporation, Cisco Systems and Alcatel Lucent, Zain said in a statement on the Saudi bourse's website.

The operator said it would use its own financial resources to finance the deals.-Reuters