A SUICIDE bomber blew herself up on a busy Tunis avenue on Monday afternoon, killing herself and wounding nine other people, mostly police officers, Tunisia’s Interior Ministry said.

The 30-year-old woman set off the blast just before 2pm (local time) in the Tunisian capital’s popular Habib Bourguiba avenue, according to Interior Ministry spokesman Sofiene Zaag, quoted by the local TAP news agency.

In a statement, the Interior Ministry said that the suicide bomber, who was not previously known to authorities, blew herself up near a police patrol.

It said eight police officers and one civilian were wounded. Apart from the bomber, there have been no further reported deaths.

An AP reporter at the scene saw many ambulances arriving to take the wounded to hospitals. The avenue, as well as several adjacent streets, was cordoned off by police.

Zaag was quoted by TAP as saying the explosion took place in front of Tunis’ city theatre. Habib Bourguiba avenue is considered the cultural, political and economic heart of Tunis — and is sometimes called Tunisia’s Champs Elysees.

Tunisian radio station Mosaique FM said Interior Minister Hichem Fourati was on his way to the scene. It said the attacker was wearing a homemade bomb belt with a small quantity of explosives. The station cited a security source it did not name.

It is understood the bomber came from the Mahdia region of eastern Tunisia and was previously unknown to security services. Security raided her home after the attack.

Tunisian authorities have been on high alert in recent years following a spate of attacks including a deadly shooting in Tunis’ Bardo National Museum in 2015 in which 22 people, including many European tourists, died.

In 2015, in an Islamic State-claimed attack on a main Tunis road, a suicide bomber blew himself up on a bus carrying members of the Tunisian presidential guard, killing 12.