LONDON — A British government minister joined an increasingly bitter debate about the rights of female Muslims to veil their faces, saying a teaching assistant should be fired for insisting on wearing one in school.

The government’s Race and Faith minister, Phil Woolas, was quoted by the Sunday Mirror newspaper as demanding that Aishah Azmi, an Islamic teaching assistant, be fired for refusing to remove her veil at work.

“She should be sacked. She has put herself in a position where she can’t do her job,” Mr. Woolas said.

Ms. Azmi has refused to remove her black veil, which leaves only her eyes visible, in front of male colleagues. She was suspended from her job but has taken her case to an industrial tribunal, a court that handles cases on employment law, which will make a decision in the next few weeks.

Ms. Azmi, who is 24 and has two children, has insisted that she had been willing to remove her veil in class, as long as there were no adult males present.

“She is denying the right of children to a full education by insisting that she wears the veil. If she is saying that she won’t work with men, she is taking away the right of men to work in school,” Mr. Woolas said.

The debate on the veils began earlier this month, when Jack Straw, the former foreign secretary who now serves as leader of the House of Commons, said Islamic women visiting his office should remove their veils.

The opposition Conservatives also weighed in on the contentious issue, with one of the party’s top officials accusing Islamic leaders of encouraging a “voluntary apartheid” that could help spawn homegrown terrorism.

A top Conservative Party official, David Davis, supported Mr. Straw for starting the debate.

“What Jack touched on was the fundamental issue of whether in Britain we are developing a divided society,” Mr. Davis told the Sunday Telegraph newspaper. “Whether we are inadvertently encouraging a kind of voluntary apartheid.”

Prime Minister has praised Mr. Straw for raising the issue “in a measured and considered way” and urged Britons to engage in such discussions without “becoming hysterical.”

Salman Rushdie, whose book “The Satanic Verses” once led to death threats against him by Islamic clerics, said last week that Mr. Straw “was expressing an important opinion, which is that veils suck, which they do. I think the veil is a way of taking power away from women.”

The House of Lords’ first Islamic legislator, Nazir Ahmed, yesterday joined the fray by criticizing British politicians and the press for “demonizing” the country’s community of Muslims.

In an interview with British Broadcasting Corp. radio, Mr. Ahmed said: “Let’s be honest, there are people in our community who call themselves Muslims who have been threatening our national security.”

In Tunisia, the authorities are applying with renewed enthusiasm a law dating back to 1981 that bans women from wearing Islamic headscarves in public places, the British Broadcasting Corp. reported. Those who refuse face losing their jobs.