(KRON) -- The Hans Zimmer concert at Oakland Arena is delayed, the arena's X page announced Thursday. The arena posted about the delay at 8:21 p.m. The concert was slated to begin at 8 p.m. Parking and entry gates have since reopened. Traffic on Interstate 880 near the arena was heavily delayed, KRON4 has confirmed. There was a long line of people waiting outside the venue. There is no information available as to why the concert was delayed. This is a developing story. Stick with KRON4 for more information.