MANILA -- Some vote-counting machines (VCMs) malfunctioned as the Philippines' midterm election proceeded on Monday, stalling voting for former Vice President Jejomar Binay, television host Karla Estrada, and many others.

Monday's vote, wherein President Rodrigo Duterte is poised to see more allies elected to the Senate, is the fourth to use automated counting.

"There's something wrong... Hindi ako makaboto. Wala ba kayong solusyon diyan?" Binay said after the vote-counting machine or VCM refused to accept his ballot.

(There's something wrong... I can't vote. Don't you have a solution?)

The principal of the school where Binay voted, Jina Iligan, said the situation was "beyond our control" and that the machines were being fixed. The vice president voted eventually after he complained before the Commission on Elections.

• Voters throng precincts as crucial Philippine polls get underway

Binay's eldest daughter, Sen. Nancy Binay, who is seeking reelection, delayed her vote due to the machine malfunction.

Estrada, mother of popular actor Daniel Padilla, posted on Instagram that she could not vote because of a broken machine.

"Waiting sa pila para bumoto! sira ang machine ng precinct namin kaya tulala lang kami dito sa pila! Pati pag boto sakripisyo! Kaya kayong mga mahahalal galingan n’yo talaga!!!" she said.

(Waiting in line to vote. The machine in our precinct is broken that's why we're stuck in line. Even voting is a sacrifice. That's why whoever is elected, do your job well.)

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A post shared by KARLA ESTRADA (@karlaestrada1121) on May 12, 2019 at 4:55pm PDT

In Pasig City, mayoral candidate Vico Sotto said he received reports that 35 counting machines were not working.

Some 61 million voters are registered to choose their congressmen, governors, mayors and other officials in voting that will last until 6 p.m.

Under the Philippine system, voters shade ovals in ballots that are fed into counting machines. The machines will later transmit the results electronically.

Elsewhere, voters complained of long lines and heat, which forced many of the elderly to camp out early to avoid the crowds.