PAN communications director Khalid Samad said they were kept in the dark over the matter before finding out it was DAP that had erected the billboards on Wednesday.
Khalid said he had spoken to Selangor DAP chairman Tony Pua to clarify matters.
"Tony (Pua) explained that this was a situation where the Chinese community in particular have bottled up their feelings because of what Jamal (Sungai Besar Umno chief Datuk Jamal Yunos) had said about them.
"They are disappointed that Jamal had not retracted his hurtful racial statements and had not apologised to the Chinese community. Those were the bottled up feelings that they needed to express (through the billboards).
"We have discussed and agreed that we would not put up billboards like that as it can be provocative and should not happen anymore. We will have closer coordination between us to ensure that the messages on Pakatan Harapan billboards are the same," said Khalid.
Yesterday, police tore down six billboards with messages targeting Barisan Nasional and Pas leaders afer receiving a report from the public.
The messages include allegations against 1Malaysia Development Berhad and picture of Jamal allegedly uttering racist quotes.