TUNIS, Tunisia — Tunisia's interior minister says a female suicide bomber who blew herself up on the main street of the capital had pledged allegiance to the Islamic State group.

Citing a preliminary report on the bombing that injured about 20 police officers and six civilians, Interior Minister Hicham Fourati told the Tunisian parliament on Monday that Mouna Guebla on Oct. 29.

Fourati said Guebla pledged allegiance to IS, and allegedly was in touch with extremist organizations inside and outside Tunisia.

The minister said without elaboration that authorities dismantled numerous cells and arrested suspects this year, aborting planned attacks in the capital.