Burkina Faso has arrested 11 members of the dissolved presidential guard in connection with the raid of an armoury near the capital earlier this week, the army said on Saturday.

"Since yesterday, we have arrested a total of 11 from the RSP (presidential guard)," said Mahamadi Bonkoungou, head of the operations unit, adding that they were still pursuing other perpetrators still thought to be on the run.

Friday's raid came less than a week after al Qaeda fighters killed 30 people, including many foreigners, in attacks on the capital Ouagadougou, underscoring the security challenges for new President Roch Marc Christian Kabore.