Former prime minister Dr Mahathir Mohamad showed up at the Dang Wangi police district headquarters today in support of those being questioned by police there over their involvement in a pro-Undi18 protest held outside Parliament last week.<br /><br />About 100 people took part in the protest on March 27th over the government's decision to delay the implementation of constitutional amendments to lower the voting age to 18.<br /><br />Four individuals who were called in for questioning today were lawyer Ambiga Sreenevasan, Simpang Renggam MP Maszlee Malik, Petaling Jaya MP Maria Chin Abdullah and Segambut MP Hannah Yeoh.