Pakistani Prime Minister Nawaz Sharif has described the stoning to death of a woman by her family in front of a Lahore court as "totally unacceptable".
He ordered the chief minister of Punjab province to take "immediate action" and submit a report by Thursday evening.
Farzana Parveen, who was three months pregnant, was pelted with bricks and bludgeoned by relatives furious because she married against their wishes.
Her husband told the BBC that police simply stood by during the attack.
"They watched Farzana being killed and did nothing," her husband, Muhammad Iqbal, told the BBC.
There are hundreds of so-called "honour killings" in Pakistan each year.
This incident has prompted particular outrage as it took place in daylight while police and members of the public apparently stood by and did nothing to save her.
Mr Iqbal described the police as "shameful" and "inhuman" for their failure to stop the attack.
Police collect evidence near the body of Farzana Iqbal, who was killed by family members, at the site near the Lahore High Court building in Lahore May 27 Police questioned witnesses as Ms Parveen's bloodied body lay on the pavement
"We were shouting for help, but nobody listened. One of my relatives took off his clothes to capture police attention but they didn't intervene.," he added.
Arranged marriages are the norm in Pakistan, and to marry against the wishes of the family is unthinkable in many deeply conservative communities.
Via the BBC. More at link. http://www.bbc.co.uk/news/world-asia-27622232