Police say they have detained dozens of people for protesting against attacks on churches in the Indian capital in recent months, accusing Prime Minister Narendra Modi's government of inaction to prevent or investigate the incidents.

Police said the protesters were detained Thursday as they marched toward the residence of Home Minister Rajnath Singh in a high-security area where protests are banned.

Carrying placards that read "Enough is Enough, What are police doing?" the protesters assembled outside the Sacred Heart Church in New Delhi.

They blame the attacks on Hindu hardliners.

Police say they have provided security to all 225 churches in the Indian capital. The protest comes after a mysterious fire gutted a church in New Delhi and several other incidents of vandalism at churches across the city.