Police say 21-year-old assailant had come to Jhelum from Lahore "with the intention to murder" Mirza.
Two brothers arrested, woman, 50, sent to Rescue 1122 trauma centre; police acted on anonymous tip-off.
Police arrest suspect with help of CCTV footage after identification by the victim.
Minister for Railways Sheikh Rashid says accident appears to have occurred due to human negligence.
Complainant alleges that Haji Anwar had sold her off for Rs1 million and that she had no information about the deal.
Police launch investigation; victim's body sent to hospital for post-mortem examination.
Traffic flows unimpeded after removal of road blockages.
Police say victims were killed at the suspect's house.
Victim denies charges; police register an FIR.
"A fifth child luckily survived the incident whilst he was away at a neighbour's house," says SHO Fiaz Ahmed.
Police have arrested the suspect and lodged a case against him.
The suspect fled the scene by climbing over his house's gate, however, he was later arrested by the police.
The two men found in possession of stolen ATM cards, gloves and Rs160,000 in cash.
Woman claims her husband used to physically abuse her, demands justice from police.
Missing infant's mother says her husband was unemployed and indebted.
The students had made carvings on their arms using sharp-edged tools, a part of the challenge.
"Our family is hurt by what he did," says Khuram Butt's cousin. "This has destroyed our family's pride."
Two pilots on board the aircraft ejected safely.
Four Pakistanis have reportedly been abducted in Turkey, seven in Iran.
Nine other are injured, some of them critically.