Notice anything 'suspicious' about this MRT notification board?

A photo of an MRT notification board showing a congratulatory message for Joseph Schooling has gone viral.

The photo taken by Lionel Yeo was posted by Mr Brown on his Facebook page. 

The board read:

"Heartiest congratulations to Joseph Schooling. You are in inspiration!! 

"Seen anything suspicious?"

The unusual juxtaposition of the two lines of the messages has inspired Mr Brown to turn the photo into a meme.

He wrote on the photo:

"When you want to congratulate Joseph Schooling, but you also care about national security."

The photo has garnered almost 1,000 shares and close to 3,000 reactions since it was posted yesterday (Aug 19).