Story highlights
- Mexico's government says fuel price hikes are necessary
- Protesters block roads and march to show frustration
(CNN)A hefty government gas price hike is fueling protests, looting and road blockades in Mexico.
Authorities arrested more than 250 people for robbery and acts of vandalism around the country this week, officials said.
Some protests have been peaceful.
Demonstrators protest against the rise in fuel prices at a petrol station in Mexico City on Thursday.
But in other parts of the country, people ransacked stores.
People pick up toys as they loot a store during a protest in the port city of Veracruz, Mexico, on Wednesday.