A Dhaka court today allowed police to interrogate BNP acting secretary general Mirza Fakhrul Islam Alamgir at jail gate by May 23 in connection with three arson cases.

The court sent the BNP leader to jail after rejecting both his remand and bail petitions.

Metropolitan Magistrate Ashok Kumar Dutt also directed the jail authorities to take an initiative to provide treatment to Fakhrul in the jail.

Police yesterday sought a 30-day remand for Fakhrul after showing him arrested in the three arson cases.

Sub-inspectors Shafiqul Islam and Morshed Alam of Paltan Police Station, investigation officers in the cases, sought 10 days' remand for each cases filed in January.

Of the three cases, the first one accuses Fakhrul and 28 others of vandalising and torching a bus at Gulistan on January 4.

The second case alleged that Fakhrul and 49 other BNP leaders and activists brought out a procession and later set fire to a motorbike of a policeman at Fakirapool on January 5.

According to the third case, a BRTC bus was torched near Bangabandhu National Stadium on January 6 by a group of BNP leaders and activists including Fakhrul.

On May 11, Fakhrul and 25 other BNP men were charged with hurling crude bombs at policemen and damaging vehicles in Shantinagar area in March, 2013.