11.  Although the city-state is known for its generally tidy streets and clean conditions, rats can be frequently seen at night in outdoor food centers and older neighborhoods.

12.  Police presence was heavy on the streets of Ulan Bator on Friday, and armed patrols enforced a ban on outdoor food stalls.

13.  But some older washrooms, particularly in outdoor food centers, remain pockets of filth despite fines for failure to flush public toilets and urinals.