Question about "Local Unrest AC"

By player1577167, in Twilight Imperium 3rd Edition

So yesterday a dude had a planet with a scientist, pds and a lonely GF.
BAM! Local Unrest AC. He had no spies/sabotage-cards left.

Naturally the GF get's it, pds is removed and planet is neutral.
But what happens with the leader?



We rolled and got a roll on Invasion Combat-leader roll that stated he was captured. Captured by whom? So the player who played the AC got the captive leader but it felt wrong.

Do you guys know how it should have played out?
Perhaps it's only killed / escaped that can apply when a "neutral force" is fighting leaders?

Because of FAQ:

Q: If a Fighter Ambush domain counter eliminates a ship with
a Leader, what happens to the leader?
A: Since this is technically a space battle, you would roll a die.
If the leader would be captured, he is instead killed
(since domain counters cannot take prisoners).
Edited by Oskar
Ooops, it's core rules.

12.5.3 On a planet
If a planet containing a Leader is successfully invaded
by an enemy player, roll a die. On a result of 1-
5 the
Leader is captured On a result of 6-
9 the Leader escapes
and its owner may immediately place the leader on any
friendly planet (not under blockade). On a result of 10,
the Leader is killed and removed from the game.

If a Leader is present on a planet whose ownership
changes for any other reason than invasion, the Leader
automatically escapes and may be placed on any
friendly planet. Leaders can never exist on neutral or
enemy planets or in space by themselves.