The US State Department has approved the potential sale of more than $1.4 billion worth of military training and equipment for Saudi Arabia, a report said.

The deal includes a radar system made by Lockheed Martin Corp as well as a training programme for the Royal Saudi Air Force and other Saudi forces inside and outside of Saudi Arabia, Sky News reported, citing two notices issued by the Pentagon on Monday.

Lockheed is the prime contractor for radar systems that were approved for potential sale, it said.

The Pentagon said Saudi Arabia intended to use the radars to support its border security by locating the source of incoming artillery, rockets and mortars and defending against them.

The radars were a part of a $662 million State Department approval which included ammunition, trucks and technical support.

A separate $750 million 'blanket order training program' contract, included flight training, professional military education, and English language training, the Pentagon was quoted as saying.

The Pentagon said the training would include how to avoid civilian casualties, legal instruction related to armed conflict, and training about human rights.