Actor Daniel Wu and wife Lisa S welcomed their baby girl into the world on Monday.According to an article in AsiaOne, the couple announced the baby's birth on June 3 through their Twitter and Weibo accounts.Posting a photo of the newborn's clenched fist, Wu wrote: "We would like to announce the birth of our healthy baby girl Raven Wu.""A couple has now become a family. We are so excited to begin this new journey in our lives!"It is the first child for Wu, 39, and model-host Lisa, 38. The couple had earlier revealed that they had been trying for a baby since they tied the knot in 2010.