Arrests made after investigation agencies utilised CCTV footage to trace suspected suicide bomber to Garhi Shahu.
IG Punjab confirms three other people killed, 25 people also injured in suspected suicide attack.
Former premier, whose bail ended at midnight, thanks his supporters, says their "passion will bear fruit".
An FIA official says the arrests were made as part of a province-wide crackdown.
Demands PM, CM Punjab get her justice "before it is too late".
Report says Aziz has experienced some dizziness, vomiting; suggests getting opinions of more specialists.
Lahore police arrest husband, one other suspect; human rights minister, Punjab IGP take notice of incident.
Statement by actor warns of legal action "should the FIR not be cancelled".
Body of 15-year-old domestic worker was recovered by police from a stormwater drain in Lahore's Iqbal Town area.
Eyewitnesses' accounts differ from CTD claims that family members were killed during a shootout with "terrorists".
Prison IG orders an inquiry; PPP's Nafisa Shah vows to raise issue in parliament.
Suspect was blackmailing the woman with her private photos and videos to force her into marrying him.
The same police officials last month had accused Mahmoodur Rasheed's son, his friends of kidnapping and torturing them.
Another girl found in an injured state shifted to a hospital; Punjab CM takes notice of the incident.
11-year-old girl tells Child Protection Bureau her employers tortured her with a hot iron and sticks.
Disturbing footage shows several men taking turns to beat up the two women using a thick cane, kicking them.
Crash was attributed to a technical fault, the nature of which is not yet known.
"The suspect is a part of an international gang that shares porn videos among themselves," says FIA official.
Anchor's 'make-believe story' on Kasur aimed at defaming government, interior minister says.
In the video, a bearded man police say they are investigating is seen walking the street near Zainab's house.