Emergency crews dealing with the aftermath of a crash on the M1 in Northamptonshire were verbally abused by "rubberneckers", a police officer has claimed.
The eight-vehicle crash between junctions 15a and 16 caused delays on the northbound carriageway on Wednesday.
PC Dave Lee tweeted that "rubberneckers" on the southbound carriageway were shouting abuse and "giving us the middle finger".
"Disgraceful behaviour. Shame on you", he said.
Northamptonshire Police said officers were too busy to take any details of offenders. No-one was seriously hurt in the crash.