Rose Byrne and Bobby Cannavale welcome their second child

Bridesmaids star Rose Byrne and her husband Bobby Cannavale have welcomed their second child.

The news was confirmed by E! News, after rumours started swirling that the couple's baby had arrived.

The couple have not shared any more details about their latest addition to the family, so we are yet to find out if the baby is a boy or a girl and what baby name they have chosen for their little one.

Rose and Bobby have remained very private about their second pregnancy, just like they did when they were expecting their first child.

The Australian actress revealed the happy news in August, in an interview with website David Jones alongside her brother, George Byrne.

The couple welcomed their second child

She said at the time: 'I'm a little tired but feeling good. Everyone was very sweet on set today, and you always get a little bit more attention when you're pregnant, which is fabulous.'

The couple, who've been in a relationship since 2012 but haven't married, welcomed their first child Rocco in February 2016.

Instead of making an official announcement, the news was confirmed by Bobby when he went on The Late Show with Stephen Colbert.

'I had a baby on Monday, yes. You know, I didn't do anything. We [fathers] don't do anything and I'm so tired. I think I've gained 28 pounds since Monday,' he said, a week after welcoming his little bundle of joy.

'I mean, I'm not kidding you. Like, this jacket fit so well, like, last Thursday. But I've been eating so much.'

While Rocco was Rose's first child, Bobby is already a dad to 22-year-old Jake, from his previous marriage to actress Jenny Lumet.

Rose also opened up after becoming a mum for the first time after welcoming Rocco, saying: 'I'm feeling good. I'm not getting that much sleep, but that's alright! It goes with the territory.

'I'm nearly there. I went to the gym yesterday, which was exciting. I haven't done that for a while!' she told E! News last year.