A
 31-year-old man and an 8-year-old boy were killed when a 
tractor-trailer went off the highway on Interstate 95 North in 
Stonington on Monday night and burst into flames, according to state 
police. (Published Tuesday, July 28, 2015)
Tuesday, Jul 28, 2015
Stonington, Connecticut 
A
 31-year-old father and his 7-year-old son were killed when a 
tractor-trailer went off the highway on Interstate 95 North in 
Stonington on Monday night and burst into flames, according to state 
police.
Sergio
 Amilear Castellon, 31, of Council Bluffs, Iowa was driving the truck 
near exit 91 on I-95 just after 8 p.m. when he hit the guard rail, 
according to a news release from state police.
His
 7-year-old-son,  Sergio Giovanny Castellon, was in the sleeper section 
of the truck and was also killed in the crash, according to a news 
release from state police.
Both were pronounced dead at the scene.
The
 northbound side of the highway was completely shut down at exit 91 for 
hours in the Mystic section of Stonington into Tuesday morning, but it 
reopened by 11:02 a.m.
Witnesses
 at the scene said they saw smoke and heard explosions and footage from 
the scene showed a plume of black smoke billowing up from the crash 
site.
Police are actively investigating and witnesses are asked to call state police at 860-848-5033.