NEW YORK — Thousands of runners in New York and across the world are showing their solidarity with the victims of the Boston Marathon bombings.

More than 6,000 runners finished Sunday’s Run for the Parks, a four-mile run in Central Park that was planned before Monday’s attacks.

Organizers sold “I Run for Boston” T-shirts with proceeds going to the One Fund Boston, the official fund for bombing victims.

Other “Run for Boston” events have taken place worldwide, with many runners wearing blue and yellow, the official Boston Marathon colors.

More than 500 runners gathered Saturday in St. Louis for a Unity Run. In San Francisco, about 400 people ran Friday along the Embarcadero. A run christened “Boston Strong San Diego” is planned for Monday.