Washington, Mar 22 : Harrison Ford and long-time girlfriend Calista Flockhart are engaged, it has emerged.

According to sources close to the couple, the 66-year-old hunk surprised Flockhart, 44, with an engagement ring on Valentine''s Day weekend while the two were away on a family vacation with son Liam.

However, reps for the couple did not comment on the news, reports People.

The couple has been together for seven and a half years.

No wedding date has been set yet, the mag said. (ANI)