KUALA LUMPUR, Sept 24 (Reuters) - The wife of Malaysia's detained former finance minister Anwar Ibrahim said police had prohibited any meetings and rallies at her house, the official Bernama news agency said on Thursday.

It quoted Wan Azizah Wan Ismail as telling reporters after returning from police headquarters, where she went for questioning on Wednesday, that a restriction order was issued under Malaysia's Internal Security Act (ISA).

She said that only family members, relatives and close friends could visit her suburban house. Anwar's political supporters were prohibited from entering the house.

Wan Azizah said the order received at the police headquarters also stated that if she breached the order, she could be detained and charged in court.

The police arrested Anwar on Sunday under the ISA, which allows for indefinite detention without trial, and said he would be charged in court within a week.

The police are investigating charges of sodomy and treason against Anwar, who has repeatedly denied the allegations.

Anwar and his supporters have led anti-government protests since his sacking from the government on September 2 and expulsion from the United Malays National Organisation (UMNO) a day later.

On Sunday and Monday, riot police used tear gas and water cannon to disperse thousands of supporters protesting against Anwar's detention.

Police have increased the number of personnel guarding the house and surrounding area and started conducting checks on those calling at the house.

According to Wan Azizah, she had not received any directive from the police to prohibit reporters from meeting her, Bernama reported.

Despite the restriction order, she said the reform movement launched by her husband would go on.

''I don't have to do a lot,'' she said. ''The reform has started in the hearts of the people.''

She said her six children were much affected by the detention of their father and some of them had refused to go to school.

''Their friends keep asking them about their father and they just couldn't stand it,'' she said.

She said that her husband had also made a special tape recording of personal messages for the children.