Al-Qaida's leader in Iraq Abu Musab al-Zarqawi appeared in a video on an Islamic website on Tuesday.

The Jordanian born militant said in the video that mujahideen were fighting on despite a three-year "crusader" war.

Zarqawi was shown wearing black and a green vest with an assault rifle by his side in the video.

It was the first video of Zarqawi, who was the most wanted man in Iraq in the past three years.

He only aired his messages through audio recordings in the past.

The authenticity of the video, which was dated April 21, can not be immediately verified.

With a 25 million U.S. dollars bounty on his head, Zarqawi was blamed for many terrorist attacks, kidnappings and killing of hostages in Iraq's insurgency.

Source: Xinhua