Tunisian anger at 'unity govt'

A new national unity government has been announced in Tunisia, but protesters are angry at how many members of

the previous government have been allowed to keep key posts, including the ministers of defence, finance, the interior and foreign affairs.

Tear gas and water cannons were used by police to disperse demonstrators, who have demanded, along with opposition parties, a government consisting of more members not belonging to the ruling RCD party.

Al Jazeera's Ayman Mohyeldin reports from the Tunisian capital, Tunis.