An official says a top Islamic terror suspect accused in a plot to crash a hijacked plane into Singapore has been arrested in neighboring Malaysia after escaping a high-security Singaporean jail last year.

Mas Selamat Kastari escaped from the jail in February 2008 by wriggling out a toilet window in a surprising security breach that sparked a massive manhunt. He is the suspected commander of the Singapore arm of the Al-Qaeda-linked Jemaah Islamiyah.

Walter Chia, a spokesman for Singapore's embassy in Kuala Lumpur, said Friday that Mas Selamat had been arrested in Malaysia's southern Johor state bordering Singapore.

Chia says Mas Selamat is being interrogated in Johor and that the arrest "was made possible with the cooperation of the two countries."