Police have launched an investigation after shots were fired in a residential street.Shortly after 11.15pm on Thursday, police found forensic evidence of gunfire on the road and on a staircase on Middletown Drive in Pembroke.They also found bullets lodged in a nearby fence. No injuries were reported. A police spokesman said forensics officers combed the scene and officers from the serious crime division were carrying out the investigation.• Anyone with information that could help the inquiry should call 211, the main police number at 295-0011, or the independent and confidential Crime Stoppers number on 800-8477