Egypt ? Thousands of demonstrators angry about rising prices and stagnant salaries torched buildings, looted shops and hurled bricks at police who responded with tear gas Sunday in a northern industrial town as Egyptians staged a nationwide strike.

About 150 people were arrested and 80 were wounded in the gritty Nile Delta town of Mahalla el-Kobra, where riots broke out among residents and disgruntled workers at the largest textile factory in Egypt.

Protesters stormed city hall, burned tires in the streets, smashed chairs through shop windows and ran off with computers. At least two schools were set ablaze and facades of banks were vandalized, police said.

Nearly 100 others were arrested elsewhere across Egypt, officials said, as thousands skipped work and school and hundreds protested over the rising cost of food and deteriorating working conditions.