Tunisia's interior ministry has sent a police robot to patrol the streets of the capital and enforce a lockdown imposed last month as the country battles the spread of coronavirus.

Known as PGuard, the "robocop" is remotely operated and equipped with infrared and thermal imaging cameras, in addition to a sound and light alarm system.

In images and a soundtrack posted on the interior ministry's website, the robot calls out to suspected violators of the lockdown: "What are you doing? Show me your ID. You don't know there's a lockdown?"

Tunisia has been under night-time curfew since 17 March and authorities imposed stricter lockdown orders from 22 March.

Since 2 March, 14 people have died from coronavirus in the North African nation and 455 people have tested positive for the disease.