The Iranian Embassy siege took place from 30 April to 5 May 1980, after a group of six armed men stormed the Iranian embassy in South Kensington, London. The gunmen took 26 people hostage—mostly embassy staff, but several visitors and a police officer, who had been guarding the embassy, were also held. The hostage-takers, members of a group campaigning for the autonomy of Iran's Khūzestān Province, demanded the release of Arab prisoners from jails in Khūzestān and their own safe passage out of the United Kingdom. By the sixth day of the siege the gunmen had become increasingly frustrated at the lack of progress in meeting their demands. As a result, the British government ordered the Special Air Service (SAS), a special forces regiment of the British Army, to conduct an assault to rescue the remaining hostages. Shortly afterwards, soldiers abseiled from the roof of the building and forced entry through the windows. It was not until 1993 that 16 Princes Gate, having suffered major damage from a fire that broke out during the assault, was re-opened as the Iranian embassy.