Tunisian security forces have detained a second Moroccan suspect over a deadly attack on a museum in Tunis that killed nearly two dozen people earlier this year, the country’s Interior Ministry says.

Tunisian security forces arrested Noureddine al-Naibi, a Moroccan, at Ras Jedir border post on the frontier with Libya on Sunday, Interior Ministry spokesman Mohamed Ali Aroui announced on Thursday.

He was taken into custody on suspicion of having an indirect role in the attack carried out by two Tunisian gunmen at the National Bardo Museum in the capital, Tunis, near the parliament building on March 18, Aroui added.

The assault, which was later claimed by the Takfiri ISIL group, claimed the lives of 21 tourists and a Tunisian police officer.

Following the raid, Tunisia’s Interior Ministry released security camera footage of the gunmen walking through the Bardo museum, carrying assault rifles and bags, during the attack.

Last week, Italian security forces arrested a young Moroccan man on suspicion of involvement in the terror attack in the Tunisian capital.

The Tunisian government has requested Rome to extradite the Moroccan national, identified as Abdelmajid Touil, who denies his charges.

Tunis has so far detained some 50 people as part of the probe into the incident.

Despite the political stability since the ouster of Tunisia’s Western-backed dictator, Zine El Abidine Ben Ali, in a popular revolution in 2011, insurgency and terrorism still poses a security threat to the North African country.

MRA/MKA/HMV