Pompey have signed Oliver Hawkins from Dagenham & Redbridge.
The towering 25-year-old striker has arrived for an undisclosed fee and penned a three-year deal at Fratton Park.
Blues boss Kenny Jackett said: “We’re really pleased to get Oliver over the line and I’m looking forward to working with him.
“He’s someone I’ve watched for a long time and is capable of stepping out of non-league and doing well for us, complementing the players we’ve already got.
"He’s someone I’ve watched for a long time and is capable of stepping out of non-league and doing well for us."
“He will obviously add some physicality to our squad. He holds the ball up and is a big threat in the box – in fact he’s useful in both boxes.”
Hawkins started his career with North Greenford United and enjoyed prolific spells with Hillingdon Borough, Northwood and Hemel Hempstead before signing for Dagenham in January 2016.
He netted 18 goals for the Daggers in the National League last season, including hat-tricks against Wrexham and Solihull.