Pakistan's foreign ministry says Saudi Crown Prince Mohamed bin Salman will come to Islamabad this week for a key visit aimed at boosting ties between the two Muslim nations.

The two-day visit, which starts on Sunday, is also expected to include the signing of multi-billion dollar Saudi investments in Pakistan.

The ministry said on Wednesday that the Saudi crown prince, also known as MBS, will be accompanied by a high-level delegation, including members of the royal Saudi family, ministers and leading businessmen.

This will be Prince Mohamed's first official visit since he was appointed heir to the throne in 2017.

Saudi Arabia has for decades been a key donor and investor in Pakistan but relations became strained when Pakistan refused to support the Saudi-led intervention in the war in Yemen.