Melania and Barron Trump have moved into the White House

Melania and Barron Trump moved into the White House on Sunday after spending the first four months of President Donald Trump's presidency in New York City.

The move was announced by Melania Trump's communications director, Stephanie Grisham, in a tweet.

"It's official! @FLOTUS & Barron have made the move to DC!" Grisham said.

Melania Trump tweeted about the move later Sunday evening.

"Looking forward to the memories we'll make in our new home!" she said.

After President Trump's inauguration in January, the first lady and their 11-year-old son remained in their residence in Manhattan's Trump Tower while Barron finished the school year at Columbia Grammar and Preparatory School. In doing so, Melania Trump became the only first lady in recent memory to delay her move to the nation's capital.

Sunday's move occurred earlier than initially expected - a Politico report from last week said the first lady was set to move on Wednesday, June 14, coinciding with President Trump's 71st birthday.

Melania Trump's parents, Viktor and Amalija Knav, joined the Trumps on their flight to Washington. Politico reported last week that the Knavs have been helping take care of Barron in New York and will be making appearances at the White House.