Zanzibar Q&A: Behind the acid attacks

The acid attack on two British women in Zanzibar this week has shocked many on the Tanzanian island who believe it is an isolated incident.

Stone Town has narrow alley ways and distinctive architecture

What is Zanzibar like?

How dangerous is it?

The attack is a worry for residents who depend on tourism for their livelihoods

Who is thought to be behind the attack?

Are there religious tensions?

Zanzibar was once a centre of the slave trade

Is it likely to damage the tourism industry?