BNP Vice-Chairman Barkat Ullah Bulu, his wife and two others were injured as their motorcade came under attack by 'miscreants' in Cumilla's Monoharganj on Saturday, while en route to Dhaka from Noakhali.
"Bulu sustained serious injuries to his head," said Md Mostak Mia, central organising secretary of Cumilla BNP.
He was, however, able to hold a press briefing later, and said one of the tyres of his car got punctured as he and his wife Shamima Barkat Lucky were heading back to Dhaka from Noakhali's Begumganj. This is what led to the stopover in Monoharganj.
"Some miscreants attacked us at Bipulasar Bazar as we made a stopover to change the punctured tyre, and were having tea with some local BNP activists and leaders," Bulu said.
They were immediately taken to a private hospital in Chandina and later shifted to Dhaka for further treatment.
The injured said some men suddenly arrived on a motorcycle and swooped on them, according to Jawhar Iqbal, in-charge of Natherpetua Police Outpost.
"We will take legal action if we receive a complaint," he added.