This is the moment a Filipino worker was allegedly caught stealing money from a tourist as they went through airport security checks.

Footage shows a female employee apparently inserting a 'stolen' wad of cash into her colleague's pocket at the state-run Ninoy Aquino International Airport in Manila, Philippines on February 24.

Holidaymaker Piyawat Gunlayaprasit from Thailand said he was about to board a transit flight and filmed the footage as evidence after he heard fellow traveller Kitja Thabthim complaining that he had lost 20,000 Japanese yen (around 146 USD).

The woman, after receiving Kitja's report about the missing cash, had allegedly pointed him to the Lost and Found section since she claimed there were no security cameras in the area.

However, Piyawat said he noticed the workers with the money then passed through the scanners and pulled aside Kitja to show him the video.

The airport worker was confronted with Piyawat's footage before giving Kitja back the money. The worker also allegedly begged for him to delete the recording from his iPad, and he complied since he wanted to 'get away from her'.

Piyawat said: 'The video stayed in my cloud storage. I shared the videos as a lesson for tourists going to the airport in the Philippines. Always be careful of your belongings.'