Delhi Police said Sunday that they have opened an investigation after three female journalists alleged sexual harassment by police officers during demonstrations in New Delhi against India’s Election Commission.

The complaints emerged Saturday as police detained scores of people near Jantar Mantar, the government-designated protest area in the capital. Demonstrators had gathered to demand the resignation of Election Commission of India chief Gyanesh Kumar over allegations connected to a major voter-roll revision.

Protests began Friday, with critics alleging wrongdoing in the revision process, which they say has removed millions of names from voter lists. The Election Commission of India has denied the accusations. Kumar has not made any public comment on the matter.

In its statement, Delhi Police said the allegations had been raised by three women journalists against officers. The force said it would conduct a “fair and impartial enquiry”.

One of the complainants said in a video posted on social media that an officer pushed her and touched her “inappropriately”.

Further demonstrations planned

A third day of protests was planned in the capital on Sunday, involving left-wing groups and supporters of the Cockroach Janta Party, or CJP.

The CJP started in May as a satirical online movement and later succeeded in its campaign to remove the then education minister. Its chief, Abhijeet Dipke, had warned Saturday against a police crackdown and detentions. He said the officer accused in the complaint “must be arrested immediately”.

Neha Bora, an activist with a left-wing student organisation, urged demonstrators to march towards India Gate in central New Delhi. “From Streets to Protests, Women Are NOT SAFE!,” she wrote on social media.

Opposition politicians have accused the Election Commission of India of acting on behalf of Prime Minister Narendra Modi’s Bharatiya Janata Party. They plan to march to the Election Commission in New Delhi on Tuesday before holding “Save Democracy” rallies across the country.

The CJP has separately called for a “massive mobilisation of young Indians” in New Delhi on October 10.