NORFOLK, Va. (AP) — Dozens of truck drivers have been denied access to Navy bases on the East Coast because of their criminal records.

More stringent rules were put in place following a March shootout in which the Navy says a civilian truck driver who was a convicted felon killed a sailor.

The Navy says in just the first three weeks of the more stringent rules, 48 transportation workers weren't allowed onto installations in Virginia, Connecticut, New Jersey and Rhode Island.