Main roads to be closed to heavy traffic, 1,000 check points to be set up to ensure security, say police sources.
Govt also seeks immigration clearance facility for pilgrims at Karachi airport.
Top commander of Saudi-led coalition also meets foreign minister and Senate chairman.
The three MOUs will be signed in the fields of oil refining, liquefied natural gas and mineral development.
Five trucks full of the crown prince's personal belongings have reportedly arrived to ensure a comfortable stay.
Outcome of talks between Islamabad, Riyadh positive so far, says senior finance ministry official.
Delegation from kingdom visits site for proposed facility in Gwadar.
PM briefed about similar agreements that will be signed with China, UAE and Malaysia in next two months.
Information minister says MoU is expected to be signed in February.
Information minister says draft for MoU on "largest ever foreign investment in Pakistan" to be finalised within a week.
Asad Umar says he keeps getting messages from Saudi crown prince "to hurry up" on approval, announcement of package.