KHARTOUM, Sudan — Sudanese police fired tear gas on Friday at demonstrators in two cities who are angry over rising prices and a nationwide cash shortage, among other issues.

The protests, which began after noon prayers in Omdurman and Atbara, were smaller than those on Thursday, when at least eight people were killed as thousands took to the streets, some calling for the overthrow of Sudan’s longtime president, Omar al-Bashir.

At least one protester was killed Friday in the northern city of Atbara, the security chief there said.

A government spokesman blamed “infiltrators” for derailing peaceful demonstrations and turning them into “subversive activity.”