Pakistani police on Thursday shot dead a militant commander suspected over the killing of a prominent woman development worker a day earlier, a spokesman said.
Parveen Rehman, 56, who was known for her work in impoverished neighbourhoods, was killed by motorcycle gunmen in the Pakistani city of Karachi as she drove home from work Wednesday.
"Police raided a house in western Manghopir neighbourhood (of Karachi) on Thursday where Qari Bilal started gunfire. The police returned fire and killed him on the spot," senior police official Javed Odho told reporters.
"He was a local commander of the banned Tehrik-e-Taliban organisation and was a suspect in the killing of Parveen Rehman a day earlier."
Another security official confirmed the death of the militant.
Meanwhile, police arrested another six Taliban militants from the city's southern and western neighbourhoods and seized heavy explosives and weapons.
"Those arrested included Bashir Ullah, who was a mastermind of the deadly bombing in Abbas Town neighbourhood," senior police official Shahid Hayat said.
A bomb in the city's Shiite neighbourhood, Abbas Town, killed 50 people and injured more than 100 on March 3.
The city of 18 million, which is Pakistan's business hub, last year saw around 2,000 people killed in violence linked to ethnic and political tensions, its deadliest toll in two decades.