Swift: Initialising a 2D Array

I have a struct called Tile, which has (for now) a position defined as a tuple:

struct Tile {
    let pos: (Int, Int)

And a class called Board, which has a 2D array of Tile objects:

class Board {
    let tiles: [[Tile]]
    init() {
        var tilesArray = [[Tile]]()
        for row in 0..<Board.rows {
            var rowTiles = [Tile]()
            for column in 0..<Board.columns {
                let tile = Tile(pos:(column, row))
        tiles = tilesArray      

This works, though it feels a little messy... I'll have to come back and look at this again.