New Delhi, An internal inquiry has been initiated by the bureau of immigration into a northeastern woman's allegation that an immigration official had made racial remarks against her at the Delhi airport on Saturday, when she was on her way to Seoul.

The official facing allegations is a sub-inspector level officer, said top immigration official.

Kiren Rijiju Union Minister of State for Home Affairs, said on Monday that an inquiry has been instituted into the allegation of racial harassment and action will be taken if anyone is found guilty.

Rijiju added, "We are examining the case. We have asked for a full report. There have been previous cases of harassment. We will take action if there was a harassment".

Bureau of Immigration conducted an inquiry which comes under the Ministry of Home Affairs.

Minister of External Affairs, Sushma Swaraj had expressed regret over the incident and tweeted that, "Monika Khangembam - I am sorry to know this. Immigration is not with me. I will speak to my senior colleague Shri @rajnathsingh ji to sensitise Immigration officials at the airport".

Khangembam wrote on her facebook wall that when she went to the immigration desk at IGI at around 9 pm on Saturday, an official looked at her passport and said, 'you don't look Indian'.

Then he allegedly smirked at her and asked her how many states were there in the country, in an apparent bid to know her Indianness.

A lady official at the adjacent counter was giggling while the male officer paid no heed to her, she said.