Updated at 10:30 a.m. — Police tweeted at 10:20 a.m. that all lanes on Old Dominion Drive are open. A police spokesperson told Tysons Reporter that no injuries were reported.  

Earlier: A fallen tree that struck a truck has caused a partial closure of Old Dominion Drive in McLean this morning (Thursday).

Fairfax County police tweeted about the closure around 9:30 a.m. Old Dominion Drive is down to one lane between Kirby and Birch roads, according to the tweet.

Police are on scene directing traffic.

TRAFFIC ALERT: Old Dominion Dr between Kirby Rd and Birch Rd is down to one lane due to a tree that fell on a truck. Officers are on scene to direct traffic, please use caution. #FCPD pic.twitter.com/ODmDQKJbMU

— Fairfax County Police (@FairfaxCountyPD) October 3, 2019

Map via Google Maps