Stars 30+3. AK with K on the flop.

I don't like reraising w/ AK out of position because it committs a lot of chips early in the tournament with a hand that misses 2/3 times and you have like 60 big blinds so its not like you have FE this early. Which is why I like calling at this stage. If you miss, so what you lost 50 chips. Now after the flop you have TPTK so I like betting into him as well, his raise could mean a number of things: any king,JQ,set, AA, or a marginal hand like QQ-JJ, medium pairs as well. I reraise this flop. An all-in reraise isn't a bad idea he may put you on a bluff, a draw or he could just be a donk like others said.