The Kansas City Chiefs fell to the Oakland Raiders, 31-30, on Thursday Night Football at Oakland-Alameda County Coliseum.
Raiders quarterback Derek Carr led an 11-play, 85-yard drive that ended in the game winning touchdown as time expired.
Carr finished with 417 yards through the air and three touchdowns, finding wide receiver Michael Crabtree for the go-ahead score on the game's final play.
Chiefs' quarterback Alex Smith tossed three touchdowns in the contest, including two of over 60 yards.
Smith found wide receiver Tyreek Hill for a 64-yard touchdown midway through the second quarter to cap a three-play, 99-yard drive, and later hit receiver Albert Wilson in the third quarter on a 63-yard strike.
The two plays marked Kansas City's sixth and seventh offensive scores of more than 50 yards this year, matching the most of any team from all of last season.
Smith completed 25 of 36 passes for 342 yards on the evening.
Rookie tailback Kareem Hunt was productive yet again, adding to his own record with a seventh-straight game of 100-plus yards from scrimmage.
Hunt tallied 117 yards of offense in the contest to move over 1,000 for the season, becoming just the second player ever to do so in their first seven career games.
Kicker Harrison Butker connected on all three of his field goal attempts, including a career-long 53-yarder.
The Chiefs will return home next week to take on the Denver Broncos at Arrowhead Stadium on Monday Night Football.
Photos from the Chiefs Week 7 matchup against the Raiders