AjayiWrites:
A video was uploaded by a Nigerian who lives in UAE, The video shows three guys robbing a supermarket in Deira, Dubai.

The three unidentified men entered the shop pretending to buy items. They waited for other customers to leave the premises before bringing out machetes and demanding money from the shopkeepers.
Dubia police were alerted about the crime. [/b]They stormed the building were the boys live [b][/b]and arrested every black male found in the vicinity.

The CCTV footage of the robbery was released by police after the culprits were caught.

[b][/b]The Nigerian guy who uploaded the video[b] on YouTube said he spent 3 days in police custody before he was released. [/b]He was among the black Africans found in the building that was raided by police.[b]


Source:
http://www.ajayiwrites.com/2016/11/cctv-footage-of-3-nigerian-guys-who.html

Guys it is implied in the write up that the reporter stays in the same building with the suspects(cos dat is where he was arrested by the police.

So he should have first hand knowledge of the situation.
He is Nigerian too and as such knows if the culprits are Nigerians or not.

Couple wey don dey tie wrapper sleep una dey here dey judge wedding cake