The director of the US Federal Bureau of Investigation (FBI) will lead a team visiting Pakistan on March 4 to help investigate the Mumbai attacks, the foreign ministry said Thursday. New Delhi blamed the attacks, which killed 165 people last November, on the Pakistan-based militant group Lashkar-e-Taiba (LeT) and the siege soured a five-year peace process between nuclear-armed India and Pakistan. "Headed by Robert Mueller, the team will arrive in Pakistan," foreign office spokesman Abdul Basit told a press briefing in Islamabad.