The Centre on Friday asked the Nagaland government to furnish a detailed report on a rape accused being killed in Dimapur.
A home ministry official told IANS that a report has been sought on the incident.
"The ministry of home affairs has asked for a report on the incident," he said, adding that the situation in Dimapur, where curfew was in place, and elsewhere in the state was under control.
On Thursday, a mob broke into the Central Jail in Dimapur, where the accused (suspected to be an illegal Bangladeshi migrant) was lodged and beat him to death after dragging him out.
The man had allegedly raped a Naga girl on February 23.