UPDATE 9:50 p.m. – Texans say that Gary Kubiak did not have a heart attack

9:40 p.m. – Houston Texans head coach Gary Kubiak is conscious and his family is with him at a local hospital.

HOUSTON – Houston Texans head coach Gary Kubiak collapsed on the field during halftime of his team’s Sunday night game against the Indianapolis Colts.

Kubiak has been carted off the field by EMTs.  NBC Sunday Night Football sideline reporter Michelle Tafoya said Kubiak looked to be in “extraordinary pain” and wasn’t opening his eyes. Says he was talking.

More details as they become available.