Is the angel of the Lord in Genesis 16:7-13 and Matthew 1:18-20 one and the same?

Genesis 16:7-13 ASV And the angel of Jehovah found her by a fountain of water in the wilderness, by the fountain in the way to Shur. 8 And he said, Hagar, Sarai’s handmaid, whence camest thou? and whither goest thou? And she said, I am fle…