Police in Indonesia say they have summoned for questioning a militant Muslim cleric, Abu Bakar Ba'asyir.
They have been under pressure to question him from the authorities in Malaysia and Singapore, who have accused Mr Ba'asyir of being a leader of a network of militant Islamic groups allegedly linked to Osama Bin Laden and his al-Qaeda network.
Abu Bakar Ba'asyir has repeatedly denied any links to al-Qaeda.
I have never met Osama Bin Laden, I have only heard his speeches on cassette
Abu Bakar Ba'asyir
Mr Ba'asyir, leader of the radical Mujahidin Council, has been asked to speak to police on Thursday.
Before he was summoned, Mr Bashir told BBC Jakarta correspondent Richard Galpin that the accusations against him were unclear.
"I have been living here in Indonesia for the past three years and have not set foot in Malaysia in that time," he said during a seminar in Yogyakarta.
"I have never met Osama Bin Laden, I have only heard his speeches on cassette."
Support for Bin Laden is not uncommon in Indonesia
Our correpondent said that though Mr Ba'asyir's Yogyakarta speech calling for strict Sharia law was unremarkable, it was extraordinary to see such a public appearance by a man wanted in both neighbouring Malaysia and Singapore.
Mr Ba'asyir's lawyer Suryanto Bakri said police might question his client over his suspected ties with al-Qaeda - blamed by the United States for the 11 September attacks on New York and Washington - or other Muslim extremist groups in South East Asia.
"Yes, that may be the case," Mr Bakri told the Reuters news agency. "But my client has said he had nothing to do with it."
Mr Ba'asyir, who previously lived in Malaysia for 13 years, told an Indonesian newspaper he knew some of the suspected militants arrested in Malaysia because they had been his pupils.
The Indonesian police also plan to send officials to Manila to help Philippine officers in investigating an arrested 30-year-old Indonesian man suspected of links with al-Qaeda.
Philippine police say Fathur Rohman al-Ghozi is an explosives expert
Fathur Rohman al-Ghozi was detained on 15 January in connection with a series of deadly explosions in the Philippines in 2000.
Police said they were acting on Information from Singapore alleging he was a key member of the militant Islamic group Jemaah Islamiya.
Analyst say the group wants to establish its own Islamic state that would include parts of Malaysia, Indonesia and the Philippines.