1.   Isolated roadblocks have sprung up, but only temporarily.

2.   Roadblocks have sprung up on some highways, where travelers will be asked to pay an illicit toll.

3.   Roadblocks sprang up to keep people off quake-damaged roads, including sections of major expressways that collapsed.

4.   Roadblocks have sprung up on all roads leading to Mecca, checking for hajj permits of Saudi residents, passports for pilgrims who arrived from abroad and illegal residents.