Britain will expel a number of Iranians for security reasons, Foreign Secretary Sir Geoffrey Howe said Wednesday, a day after Tehran severed ties with London in "The Satanic Verses" controversy. Howe said the decision to deport an unspecified number of Iranians, including embassy staff, and keep others under strict surveillance was made because Iranian spiritual leader Ayatollah Ruhollah Khomeini has refused to lift his Feb. 14 death decree against British author Salman Rushdie and the publishers of his novel, "The Satanic Verses." "We have made clear throughout that as with any other country, normal relations between Britain and Iran must depend on Iran's fulfillment of her international obligations, in particular by renouncing the use or threat of violence against our citizens," Howe said.