MANILA, April 12 -- Senator Francis Escudero on Friday apologized to the public after his vehicle bearing the "7" protocol plate was apprehended by traffic enforcers the day before for using the EDSA Busway.

In a statement, Escudero said the use of the protocol plate was "unauthorized" as the vehicle was being driven by the driver of a family member.

He did not give specific details.

He said he had directed the driver to appear before the Metro Manila Development Authority (MMDA) and comply with the show-cause order.

"The No. 7 protocol plate was also abused because vehicles with these plates are not allowed to use bus lanes," Escudero said.

He clarified that he does not personally use the protocol plates and will surrender the ones ...