New Delhi: Mounting pressure on Pakistan, the US today asked it to act with "urgency" and "transparency" on the leads in connection with the Mumbai terror attacks and implement its "stated" commitment to "cooperate fully" in bringing perpetrators to justice.

US Secretary of State Condoleezza Rice, who was rushed here by President George W Bush amid rising tensions between India and Pakistan over the Mumbai attacks, made it clear that Islamabad will have to "follow the leads wherever they go" and reach the "source" of incident.

Not ruling out participation of al Qaeda in the Mumbai strikes, she told reporters that the US and India needed to develop long-term strategies to prevent such attacks, particularly through active sharing of intelligence.

Describing the strikes in Mumbai as "attacks at India and its integration with the world", she said "this is a time when cooperation of all parties who have any information is really required. This is a different situation... We have to act with a sense of urgency and act with resolve."

Rice, who will be travelling to Islamabad tomorrow to discuss the Mumbai attacks, said "Pakistan needs to act with resolve and urgency and cooperate fully and transparently. That message has been delivered and will be delivered to Pakistan."

"...What is important now is, of course, to go to the source and to know what happened, to follow every lead, wherever it may lead and to bring those to justice who did this," said the Secretary of State who will meet Prime Minister Manmohan Singh and External Affairs Minister Pranab Mukherjee before travelling to Islamabad tomorrow.

Source : PTI