Watch key moments from League Two loss
Pompey dropped to eighth in the table after suffering a 1-0 defeat at Barnet.They were poor before the break and John Akinde scored from the penalty spot after Adam Webster was adjudged to have fouled the striker.
Adam McGurk came closest to snatching a point in the second half, but his header was tipped over by Bees keeper Jamie Stephens.
Watch the key moments from the game below or subscribe to Pompey PlayerHD for extended highlights.