Pakistan has been struck by a wave of terrorist attacks in recent weeks, killing at least 130 people across the country and leaving hundreds wounded.
The provincial government of Punjab tweeted saying it was a generator blast and teams from Punjab Forensic Science Laboratory have reached the spot to collect evidence.
The province has ordered an investigation into the blast and a report has been sought from the Inspector General of Police.
Blast in Z Block DHA Lahore. pic.twitter.com/c3ZyZXviQp
— Ali Raza (@AliRazaTweets) February 23, 2017
“The area has been encircled. Nothing can be said about the nature of blast yet,” Law Minister Punjab Rana Sanaullah said.