Kuwait City: Two Iranians mistakenly arrested after taking “suspicious” photographs of Shiite congregation halls have been freed. Kuwaiti media reported.

The reports on Wednesday said the two had valid visas to live in Kuwait and described their arrests as a precautionary measure.

Their arrests last week came ahead of the Shiite commemoration of Ashura, which marks the death of Hussain, the grandson of Prophet Mohammad (PBUH), at the Battle of Karbala in present-day Iraq in the 7th century.

Tiny, largely peaceful Kuwait has increased security recently, worried about militant attacks.

A Daesh-claimed suicide bombing in 2015 in Kuwait City killed 27 people and wounded scores. On Saturday, an Egyptian who allegedly pledged support to Daesh rammed a garbage truck into a vehicle carrying US soldiers, injuring only himself.