US
Senior policemen insist the bomber was not clad in a burqa as suspected earlier
Says increase of security at Sindh's shrines is very important
Its success depends on political will and on the sincerity of the measures
A policeman alerted by Auqaf department workers chased the perpetrator but it was already too late
In a statement, CPLC said that threats were only disseminated to law enforcement agencies (LEAs) over trusted channels