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Saudi Arabia's King Salman stands on an escalator as he arrives at Halim Perdanakusuma airport in Jakarta, Indonesia, March 1, 2017. Reuters

Salman bin Abdulaziz Al Saud, the king of Saudi Arabia, became the first Saudi monarch Wednesday to visit Indonesia in almost five decades. Indonesia is the second leg of his month-long, six-nation tour in Asia that started last week.

The Saudi king brought more than 500 tons of equipment, along with about 1,500 people — including princes and ministers — for his Asia tour. The equipment includes two Mercedes-Benz S600 limousines, a private escalator and two electric lifts. King Salman's net worth is estimated to be more than $17 billion. The head of the Muslim kingdom receives profits from the financial holdings in the nation's oil industry, and he also inherited wealth from his late brother Abdullah bin Abdulaziz Al Saud's $18 billion fortune, according to reports.

The 81-year-old was greeted in Indonesia amid tight security as the Muslim-majority nation has, in recent months, seen several attacks, most which have been blamed on supporters of the Islamic State group.

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Indonesia President Joko Widodo (left) stands as Saudi Arabia's King Salman (Center) shakes hands with Jakarta Governor Basuki Tjahaja Purnama at Halim Perdanakusuma airport in Jakarta, Indonesia March 1, 2017. Reuters

King Salman will be in Indonesia until March 9 and is due to hold talks with President Joko Widodo at the Bogor palace, where statues of naked figures had been covered to before the king's arrival.

"As the country with the biggest Muslim population in the world, Indonesia will always have a special bond with Saudi Arabia," Widodo told the king at the palace, calling the visit "historic." Salman replied saying he hoped the visit would "contribute to the improvement of the bilateral relationship between our two countries."

After Indonesia, he will travel to Brunei, Japan, China and the Maldives as part of the tour, which is mostly aimed at strengthening economic ties.

"This is an extremely historic visit for us," Indonesian Cabinet Secretary Pramono Anung told local media before King Salman's visit. The king is scheduled to give a speech to parliament Thursday and also visit Southeast Asia's biggest mosque Istiqlal in Jakarta following which he will head to the vacation island of Bali.

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Saudi Arabia's King Salman and Indonesian President Joko Widodo walk under umbrellas in heavy rain upon arrival at the Presidential Palace in Bogor, West Java, Indonesia March 1, 2017. Reuters

During his visit, King Salman is likely to speak out about his interest to open more Islamic schools in Indonesia and ramp up the number of scholarships for students.

On Tuesday, Malaysia’s Petronas signed a deal for Saudi Aramco to invest $7 billion into an oil and petrochemical refinery in the southern state of Johor.

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Saudi Arabia's King Salman is honoured by International Islamic University Malaysia (IIUM) in Kuala Lumpur, Malaysia, Feb. 28, 2017. Reuters