TUNIS, Tunisia — Tunisian authorities say a suspected religious extremist blew himself up while making a bomb in a home he was renting near the capital.

In a statement Saturday, Tunisia's interior ministry says anti-terrorist police are still working to identify the man. His pregnant wife was seriously wounded in the Friday blast, which took place in Jedaida, about 12 miles (20 kilometers) from Tunis.

Separately, the interior ministry says an "extremist" was arrested on Friday after he blew off his hand while handling explosives in Menzel Bourguiba, 43 miles from Tunis.

A week ago a bomb exploded beneath an unmarked police car in Tunis' port but didn't cause any injuries.

The explosions come days after the government said an al-Qaida linked cell was behind the assassination of leftist politician Mohammed Brahmi.