British Home Secretary Theresa May, who wrapped up a one-day visit to the capital, held talks with Crown Prince Salman, deputy premier and minister of defense, and senior government officials on common bilateral interests on Sunday.

May, who was accompanied by a delegation during her visit, conveyed the greetings of Prince Charles, heir to the British throne, and British Prime Minister David Cameron to Crown Prince Salman, which the crown prince reciprocated.

Interior Minister Prince Muhammad bin Naif, British Ambassador Sir John Jenkins, Prince Mohammed bin Salman, chief of the Crown Prince’s court and special adviser, and Ahmed Al-Salem, undersecretary of the Ministry of Interior, were also present during the discussions.

The interior minister subsequently held a separate meeting with May and discussed several issues of common interest, in addition to aspects of potential cooperation between the two countries.

Acting Deputy Riyadh Gov. Prince Turki bin Abdullah bin Abdulaziz also hosted the British home secretary and the delegation at his office in the afternoon. Ahmed Al-Salem and Sir John Jenkins also took part in the discussions.

The Kingdom and the United Kingdom have been longstanding close allies. The Kingdom opened its embassy in London in 1930.

There are more than 200 joint ventures worth 11 billion pounds between British and Saudi companies and some 30,000 British nationals live and work in Saudi Arabia. Saudi Arabia is the United Kingdom’s primary trading partner in the Middle East.

According to British Council estimates, the UK earns about 700 million pounds per year from the more than 20,000 Saudi students studying at British universities.