Pakistani police say they have arrested a man suspected of attempting to kill President Pervez Musharraf in 2002.
Many militants oppose Musharraf's support for the US war on terror
Kamran Atif, 28, was held after being wounded in a shootout with police in Karachi. A woman passer-by was killed.
Atif, a suspected member of the al-Alami group, is accused of plotting to kill the president with a car bomb. It failed to detonate.
There was a three million rupee ($51,750) reward for any information leading to his arrest.
Aftab Sheikh, provincial adviser on security, said: "He is one of the most wanted and important persons of his
There were conflicting reports of Atif's wounds. Some said he was critically hurt, others that his injuries were not life threatening.
Police said Atif was arrested in a residential area of central Karachi. An unidentified man with him escaped.
A 50-year-old woman passer-by died in the shootout that followed a police raid on a house.
Atif's al-Alami is an offshoot of the Harkat-ul Mujahideen Islamic militant group which is fighting Indian rule in Kashmir.
Many Islamic militants also oppose President Musharraf's support for the US-led war on terrorism.
Al-Alami militants are thought to have parked a vehicle loaded with explosives along his motorcade route in Karachi in April 2002.
The remote control failed to detonate the explosives.
The authorities say the vehicle was then used in a suicide attack on the US consulate in Karachi two months later that killed 12 Pakistanis.
Three al-Alami members have already been sentenced to 10 years in jail for taking part in the April 2002 plot. After Atif's arrest, four still remain at large, police say.