Expressing deep concern over a series of attacks on Nigerians in Greater Noida, the country on Thursday summoned the Indian High Commissioner and asked for the arrest of the attackers immediately.

Three Nigerian students were attacked during a fight that broke out on Monday when local residents were holding a candlelight march against the death of a class 12 student who died of drug overdose. The local residents have alleged that the student, Manish Khari, was drugged by the Nigerians, who lived nearby.

In another incident in the same evening, another Nigerian student was also assaulted by a mob inside the Ansal Plaza mall in Noida.

The issue of the attack was also raised in the Parliament on Thursday with Rajya Sabha MPs strongly condemning the incident.

"We are condemning racial attacks on Indians in other countries, like US and Australia. Racial attacks in our own country cannot be justified. Very strong action must be taken. No Indian will justify it. The government should be very vigilant," said Rajya Sabha Deputy Chairman PJ Kurien.

Reacting to the issue, External Affairs Minister Sushma Swaraj on Thursday said the administration is on alert to ensure that such incidents don't repeat. "It's not apt to comment till there is a result of investigation. Administration is alert to ensure that such incidents don't repeat," Sushma said while replying to opposition members during the debate hour in Parliament.