(UPDATED) Manila Mayor and former President Joseph "Erap" Estrada is in stable condition after he was confined at the Cardinal Santos Medical Center in San Juan last week due to an asthma attack.

According to his son, Senator JV Ejercito, the elder Estrada was admitted to the hospital on Wednesday after experiencing difficulty breathing.

Ejercito said doctors detected an infection in Estrada's lungs.

He said the mayor is recuperating after receiving treatment.

In a statement sent by his media staff, Estrada is said to be in stable condition.

"Mayor Erap is in a very stable condition, and will be back home tonight or tomorrow, and back to work again," said Bambi Purisima, the mayor's media information officer.

In a statement on Friday, Malacañang wished for the speedy recovery of Estrada, who "regained Manila's lost glory."

"As mayor of the Philippines' capital and premier city, he regained Manila's lost glory. The National Competitiveness Council named it the most competitive city in the Philippines. Get well soon, Mayor Erap!" Communications Secretary Martin Andanar said.

On Monday, however, former Senator Jinggoy Ejercito Estrada, half-brother of JV, denied that Estrada was hospitalized after contracting pneumonia.

"Contrary to what had been said and reported in the media, my father has no pneumonia," Jinggoy said in a statement.

"My father suffered an asthma attack due to overfatigue and because of the weather," he added.