New Delhi: A total of 148 FIRs have been registered and 630 people have been either arrested or detained so far in connection with the northeast Delhi communal violence, the Delhi Police spokesperson said on Friday.

Delhi Police spokesperson Mandeep Singh Randhawa said forensic science laboratory (FSL) teams have been called in and the crime scenes are being revisited. Of the total cases, 25 cases have been registered under the Arms Act, police said.

"The investigation is going on and we have called FSL teams. We are revisiting the scene of crime. We are collecting footage and evidences. We have controlled the situation and it is heading towards normalcy. The deployment (of force) will remain in the areas along with senior officers. We have conducted around 400 meetings with aman (peace) committees," Randhawa said.

The death toll in Delhi's communal violence has gone up to 42, as per the hospital authorities, while more than 250 people have been injured in the clashes. However, the Delhi Police spokesperson maintained that 38 -- most of them in their 20s and 30s -- have died during the violence.

Meanwhile, the police on Friday identified the cause of death of 35 victims of the communal violence in northeast Delhi -- 22 died due to fatal injuries from stone pelting or physical assault and 13 due to gunshot injuries.

The police have managed to identified only 26 of the victims.

"As per the report available..., 35 persons have succumbed to injuries inflicted on them during riots (till Tuesday)..., 13 persons have died due to gunshot injuries and 22 persons have died due to severe injuries...," according to a police report.

Those who died of physical assault or stone pelting are: Alok Tiwari (32 - died due to physical assault), Mohseen (25-physical assault), Salman (24 - stone pelting), Intelligence Bureau staffer Ankit

Sharma (26 -physical assault), Asfaq Hussain (physical assault), Dilbar Singh Negi (21 - physical assault), Mahroof Ali (32 - physical assault), Mehtab (22 - physical assault), Zakir (24 - physical assault) and Deepak Kumar (34 - stabbing).

Those who died due to gunshot injury are Amaan (18), Dinesh (35), Head constable Ratan Lal (42), Istayak (24), Mohammad Mubarak Hussain (28), Mohammad Mudassar (30), Pravesh (48), Rahul Solanki

(26), Shahid, Vir Bhan (50), Mohammad Furkan (30), Shad Mohammad (35).

The police have not identified the cause of death of Rahul Thakur, Faizan, Nitin, and Vinod.

Further, the PRO warned people against sharing malafide content on social media. "We have seen that some hate videos are being circulate on social media. I want to appeal and warn people not to circulate these kind of videos. We are closely monitoring the social media and we will take legal actions. We are releasing a number through which people can register their complaint if they receive such kind of videos," he said.

If people come across any such hate material, they can complain at cyber helpline 155260, police said.

The areas mainly affected by the riots include Jafrabad, Maujpur, Chand Bagh, Khureji Khas and Bhajanpura.