Alessandra Ambrosio has given birth to her second child.

The Victoria's Secret model and fiance Jamie Mazur - who already have three-year-old Anja together - welcomed their son into the world in Florianopolis, Brazil, yesterday (07.05.12).

Jamie's mother Michelle Mazur revealed the news on her Facebook page, writing: ''Grandson just born in Brazil!'''

Jamie later took to twitter to express his excitement at the new arrival.

He wrote: ''Welcome my son, can't wait to show u around this crazy place. (sic)''

No further details about the baby have yet been released.

Alessandra, 31, recently pledged to be back at work soon after having the child.

She said: ''I already have jobs planned for afterwards so hopefully will be back in shape! I told my booker and my manager, 'I know I have a job to do, so just book the jobs and hopefully it'll be fine.'

''I only have a few more jobs to do before I have the baby - all editorial, no more catwalk now - and then I hope to be back in London for the opening of the Victoria's Secret store in July. I should definitely be back for the next Victoria's Secret show - I have quite a while until then.''