Reuters said Pakistani officials have not yet officially confirmed the raid. The wire agency reported that Lakhvi and another ringleader gave orders by phone to the 10 gunmen who carried out the Mumbai attacks beginning Nov. 26.
The agency noted that if the attack is confirmed, the next stage will likely be wrangling over how and where he is tried.
President Asif Ali Zardari has said that anyone arrested in Pakistan will be tried there, too.
The Pakistani military's Inter-Services Intelligence (ISI) agency had ties in the past with Lashkar and other jihadi organizations fighting Indian rule in Kashmir, according to analysts, which could reduce the Pakistani authorities' readiness to be transparent in its handling of the situation.