ISLAMABAD (Reuters) - Egyptian President Mohamed Mursi cancelled a state visit to Pakistan on Friday, government officials said, a day after granting himself extended powers, a move likely to widen divisions in his country.

No reason was immediately given for the cancellation of the visit or for Mursi's decision not to attend a summit of developing nations in Islamabad a day earlier.

Mursi, a member of the Muslim Brotherhood, on Thursday triggered controversy in Egypt by issuing a decree that shielded from legal challenge any decisions he takes until a new parliament is elected.

The decree also exempt the Islamist-dominated upper house of parliament and the assembly writing the country's new constitution from legal challenge.

(Reporting by Randy Fabi; Editing by Ron Popeski)