In the event of a tie: The player holding the highest ranked card wins. If necessary, the second-highest, third-highest, fourth-highest, and fifth-highest cards can be used to break the tie. If all five cards are the same ranks, the pot is split. The suit itself is never used to break a tie in poker.
In the event of a tie: Highest ranking card at the top of the sequence wins.
Note: The Ace may be used at the top or bottom of the sequence, and is the only card which can act in this manner. A,K,Q,J,T is the highest (Ace high) straight; 5,4,3,2,A is the lowest (Five high) straight.