But the official added that Iraq had a large program to develop chemical weapons and is believed to be developing chemical warheads.

They would be able to carry nuclear, chemical or biological warheads weighing up to 1,000 pounds, with a range of 600 miles.

The Nodong-1, with its range of 1,000 kilometers (625 miles), could be fitted with nuclear or chemical warheads.

Often, a biological or chemical warhead will use an explosive charge for rapid dispersal.

So far, none of the missiles have carried chemical or germ warheads.

Many of these missiles could be armed with nuclear, chemical or biological warheads.

Tipped with nuclear or chemical warheads, however, they could be devastating.

The madman of Baghdad had chemical warheads at his disposal.

While Iraq is not known to have chemical warheads for the missiles, American experts assume it is trying to develop them.

The requirements for biological and chemical warheads were dropped at the end of 1953.