Tunisia has declared a curfew on eight regions, including the capital, due to rioting.
The eight-hour curfew was introduced after several violent attacks in protest at an art exhibition, reports the BBC.
It will be in place in the suburbs of Ben Arouss, Ariana and Manouba as well as the cities of Sousse, Monastir, Jendouba and Ben Guerdane.
The government has blamed ultra-conservative Islamists known as Salafists for the violence, in which police stations were set on fire but the Salafists have denied being involved in the rampage.
The Foreign & Commonwealth Office said: "A state of emergency exists and a curfew has been imposed in the greater Tunis area, including in the suburbs of Ben Arous, Ariana and Manouba, and the towns of Sousse, Monastir, Jendouba and Ben Guerdane.
"The curfew hours are 2100 to 0500. Additional curfews or other temporary movement restrictions may be imposed or changed with little or no notice."
By Diane Evans
