The A14 near Ipswich was closed this evening following a police incident.
Traffic was stopped in both directions near Trimley St Martin at about 8.30pm between the Seven Hills A12 junction and Kirton Road.
The road remain closed until 9.30pm but has since reopened.
Delays remain in the area but are beginning to ease.
In a tweet, National Highways East warned against people reversing back down the entry slip road after witnessing some drivers attempt this.
A spokeswoman for Suffolk Police said the incident had been resolved but they could not disclose what the incident was.
For up-to-date information about the county's roads, visit our LIVE Suffolk traffic map.
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