Casey Affleck has become a father for the second time

Both mother and baby are said to be doing well.

The couple – who already have a three-year-old boy Indiana August – are yet to release any further details about the birth.

‘Gone, Baby, Gone’ star Casey and Summer – the younger sister of actors Joaquin and the late River Phoenix – married in June 2006.

They got engaged in New York over the 2003 Christmas holidays and had their son the following May.

Before their nuptials, Summer – who is best known for her role in the 1998 teen horror flick ‘The Faculty’ – revealed why she loves Casey.

She said: “He is a bleeding heart. He is the most generous guy I have ever met.”