MANILA, Philippines -- Police in Quezon City served an arrest warrant for fraud against the owner of the troubled Legacy group of companies at the hospital on Monday, his lawyer said.

But Celso delos Angeles was allowed to remain in the hospital, where he was being treated for cancer of the tonsils, lawyer Noel Malaya said.

"It is the duty of police officers to take him without unnecessary delay. But at this point they will have to obtain a doctor's clearance," Malaya said in a phone interview.

Malaya said delos Angeles was flown to Manila Saturday after he reportedly collapsed in his Albay home. Delos Angeles is the mayor of Sto. Domingo town in the province.

Officials of the CIDG contacted by the Philippine Daily Inquirer (parent company of INQUIRER.net) said they agreed to allow Delos Angeles to stay at the St. Luke?s Medical Center for his 20-day chemotheraphy sessions.

The CIDG said it would assign operatives to guard De los Angeles? hospital room.