The Redskins returned to Washington to face another winless team, this time the 0-5 Kansas City Chiefs. In the first quarter, both offenses did not find the end zone; the first quarter ended with no score. In the second quarter, Chiefs kicker Ryan Succop kicked a 39-yard field goal for the only score of the half. The Redskins drove down the field with two minutes left in the half, but on the last play of the second quarter, quarterback Jason Campbell was intercepted by Chiefs cornerback Brandon Flowers at the Kansas City 3-yard line. At the start of the second half, Washington coach Jim Zorn elected to go with backup quarterback Todd Collins over Campbell. Collins tossed a 42-yard completion on his first throw of the game. The drive ended with a 40-yard field goal by Shaun Suisham. The Redskins would take the lead with a 28-yard Suisham kick, but Kansas City tied it up with a 46-yard Succop field goal at the end of the third quarter. In the final period, Ryan Succop put the Chiefs up 12-6 with field goals of 46 and 24 yards, but it was the Chiefs defense that closed the game out for Kansas City, as defensive end Tamba Hali sacked Todd Collins in his own end zone for a safety with under a minute to play. Washington fell to 2-4, while the Kansas City Chiefs gained their first victory.
Question: What was the result of Tamba Hali's sack?
Answer: a safety