Prime Minister Prayut Chan-o-cha on Saturday instructed the Ministry of Digital Economy and Society to closely monitor the situation and advise the public where necessary.

Despite a report on Monday claiming the ransomware had yet to be detected in Thailand, pictures shared on Twitter on Sunday claimed the contrary.

The pictures revealed that two digital advertising hoardings had become infected with the virus and rather than displaying the usual advertisements, instead showed a message from hackers as the Bangkok traffic passed by.

One photo, shared by Twitter user ALiCE6TY9 on Saturday said that one of the infected hoardings was located on Wireless Road.

There were also reports that other advertising hoardings had been infected in the Viphawadee area too.

Meanwhile Thai police have ordered all agencies to be careful when downloading files from the internet in a bid to limit the risk of infection from Wanna Cry.

On Sunday, Europol revealed that the Wanna Cry ransomware had claimed 200,000 victims in 150 countries and described the cyber attack as “unprecedented”