Hizb At-Tahrir (which is legal in the UK and various other western countries) also vowed to ban other political parties if they’re elected into power.

TUNIS (AFP) — An Islamist party in Tunisia said Thursday it wants to install “by political means” a regime based on the strict Shariah form of Islamic law in the north African country.

“We are working to install a regime founded on Shariah,” said Ridha Belhaj, a spokesman for the party Hizb At-Tahrir.

The party claims that “Islam is the solution” to problems in Tunisia after the ouster of longtime strongman Zine El Abidine Ben Ali in January following a popular uprising.

While denouncing violence, the party does not rule out “rebellion or civil disobedience in order to establish an Islamic state,” Belhaj added.

“In Islam, the nation has the right to overthrow its leaders, even by armed force,” he said, while also denouncing the debate over gains by women in Tunisia, the only Arab country to ban polygamy.

The Hizb At-Tahrir intends to take part in elections set for July 24 to win representation in parliament, although it does not recognize its laws, “Shariah being the only source of laws,” said the party’s secretary general Abdelmajid Habibi.

He has also said if the Islamists are successful in winning power they would ban other parties.